Italian Rum Cake
Indulge in the fantastic flavors of Italy with our authentic Italian Rum Cake – a perfect blend of airy sponge cake soaked in a rich rum syrup, layered with velvety custard, enveloped in a smooth whipped cream (or buttercream frosting) and coated with nuts. It is off-the-hook in flavor and amazingly delicious!!
Each bite has the perfect balance of moist cake, creamy filling, and a little kick of rum, topped with crunchy nuts for an added texture. Ideal for weddings, anniversaries, or any special occasion, this luxurious cake offers the ultimate celebration and is truly unforgettable! It’s my top choice every year for my birthday.
I have a lot to say about this cake, so pull up a chair, and please feel free to jump around using the links below:
Jump to:
Growing up, Italian rum cake was a must-have for every birthday celebration. We didn’t do chocolate cake, sheet cake, or any other cake. My family and most other Italian American families in the neighborhood had this kind of cake to celebrate birthdays.
What is Italian Rum Cake?
If you’re not familiar with this cake, let me introduce you (because I think you’ll really LOVE it)!
Italian rum cake is typically made of the following major components: (1) three layers of sponge cake that are soaked with a sweetened rum-flavored syrup, (2) decadent layers of vanilla and chocolate pastry cream filling (3) bakery style frosting, stabilized whipped cream frosting , or even cream cheese frosting (4) edges coated with lots of crushed nuts (peanuts in Philly or sliced almonds in other areas of the Northeastern USA).
Suggested Time Table
Don’t be intimidated by the instructions – I have found that the real key is to make the cake in small steps over time.
Making things over two or three days allows for easier assembly the morning of or the day before the event/celebration. Although the cake can be served a few hours after assembly, but it is best served the following day to allow it to set.
A suggested timetable could be:
- A week to a month beforehand, make the sponge cake and freeze it.
- Two days before, make the pastry cream and the rum syrup.
- The day before, add whipped cream to the pastry cream, make the frosting, and assemble the cake.
Sponge Cake: Ingredients and Method
Start by combining flour and salt in a small bowl and set it aside. In a standing mixer, whip egg whites on medium-low until foamy, then add cream of tartar. Continue mixing until the whites become opaque, ensuring there is no yolk mixed in, as this is critical for the cake to rise properly. Gradually add 1/2 cup of sugar to the bowl, increasing the mixer’s speed until soft peaks form. Then, transfer the egg whites to another bowl and set aside.
In the same bowl, now empty, whip the egg yolks at high speed for 3 to 5 minutes until they lighten in color and ribbon when the beaters are lifted. Slowly add the remaining 1/2 cup of sugar, cold water, and vanilla, mixing at low speed until combined. Sift the flour mixture onto the egg yolk mixture in two stages, stirring gently with a large spatula.
Next, fold in the whipped egg whites gently but thoroughly. Transfer the mixture to prepared pans, smoothing the tops if necessary. Bake for about 20 minutes until cooked through. Even if slightly overbaked, the rum syrup added later will effectively moisten the cake.
Tips for Making the Sponge Cake
When making a sponge cake, start by separating the eggs while they’re cold, as this makes it easier to keep the yolks and whites separate.
Weighing ingredients is more accurate than measuring by volume, so use grams or ounces. When incorporating the egg whites into the batter, do it gently but thoroughly to maintain their volume.
Do not grease the sides of your pan, as sponge cakes require a surface to cling to for rising. Finally, bake the cake immediately after mixing the batter to get the best results.
Pastry Cream: Ingredients and Method
The process to make the vanilla and the chocolate pastry creams is quite similar so to save time and space, only the chocolate version is shown.
Keep in mind that you’ll repeat this process and omit the cocoa powder and add vanilla extra instead for your second filling.
The preparation of the pastry cream for this cake involves a few critical steps. Start by whipping heavy cream separately and set it aside; this will be added to the pastry cream later, after it has been cooked and cooled, and just before assembling the cake.
In a small bowl, whisk together egg yolks and cornstarch, then set this mixture aside. In a medium saucepan, combine milk, sugar, salt, and your choice of vanilla or chocolate (for vanilla or chocolate cream). Heat this mixture until small bubbles form (scalding), then remove from heat.
To temper the eggs, gradually add about 1/2 cup of the hot milk mixture to the egg yolks and cornstarch, whisking quickly to prevent the eggs from curdling. Once all the milk mixture is incorporated, return the entire mixture to the saucepan. Cook over medium heat, stirring constantly until the mixture thickens. Be vigilant as the mixture can thicken rapidly. Continue stirring until the thickening process slows or stops.
Allow the pastry cream to cool, then refrigerate it until you’re ready to assemble the cake. When assembling, first whip the heavy cream until soft peaks form, being careful not to overbeat. If the pastry cream has been refrigerated and has firmed up significantly, rewhip it before folding it together with the whipped heavy cream.
Frosting: Ingredients and Method
Start by adding gelatin and water to a small saucepan, heating it on low until the gelatin dissolves. Be careful not to let the gelatin set.
Meanwhile, whip the cream and sugar together on medium speed until the mixture is slightly thickened. Gradually add the dissolved gelatin mixture to the cream, continuing to whip. Finally, increase the mixer speed and continue whipping until the mixture is firm.
The Rum Syrup
This is probably the easiest step: simply mix sugar, extract (or rum), and water in a small saucepan, heat gently until the sugar is dissolved, and then cool the mixture. Avoid overheating the syrup after the extract or alcohol has been added, or you will cook off the flavor.
You can apply to the sponge cakes with a large spoon or using a squeeze bottle if you have one.
I like to line up the cakes and apply the syrup while the parchment paper is still on bottom of cakes – makes it easier to move the cakes.
Rum extract substitution: you can use 2 tablespoons of dark rum OR 5 tablespoons of light rum for every 1 tablespoon of rum extract.
Assembly
Ensure all your ingredients are ready including the baked and cooled cake layers, pastry cream (with the whipped cream folded in), rum syrup, and frosting.
Begin assembling the cake by placing a layer of sponge cake on a cake plate or board (be sure to peel off the parchment first). Soak this layer with one-third of the rum syrup. Next, spread all of the vanilla pastry cream over this layer.
Add a second layer of sponge cake on top of the vanilla cream (again, peel off the parchment) and soak it with another third of the rum syrup. Then, cover this layer with all the chocolate pastry cream. Place the final sponge cake layer on top (peel off parchment) and soak it with the remaining rum syrup.
Finish by applying frosting to the top and sides of the cake. Decorate the sides with nuts and add any additional decorations to the top as desired.
Variations
Nuts: while almonds are common in some places, peanuts are preferred in Philadelphia. Choose nuts according to your preference.
Filling: The traditional Italian rum cake filling includes one layer each of vanilla and chocolate pastry cream, but feel free to experiment with all vanilla, all chocolate, or even raspberry or cannoli cream fillings.
Syrup: Consider substituting rum syrup with sweetened vanilla syrup for a lighter touch.
Frosting: Options range from bakery-style frosting to stabilized whipped cream or cream cheese frosting. Choose what suits your taste.
Cake layers: While sponge cake is traditional, a butter cake base can also be used as an alternative.
More Italian Baking
If you tried this recipe, please leave a 🌟 star rating and let me know how it went in the 📝 comments below! SUBSCRIBE for more recipes.
📖 Recipe
Italian Rum Cake
Equipment
- 8-inch round cake pans (three total) or use 9 inch cake pans and do 1.5X the sponge cake recipe
- parchment paper to line bottom of cake pans
- standing mixer or hand mixer
- cake board (I use 10-inch size) (helpful but not necessary)
Ingredients
Ingredients for the sponge cake: (can use 9 inch cake pans and make 1.5 times the sponge cake recipe for thicker layers).
- 1 cup (125 g) unbleached all-purpose flour sift onto a sheet of waxed paper and then spoon into measuring cup and level to rim if not weighing
- 1/2 teaspoon salt
- 6 large eggs (separated into yolks and egg whites) separate when cold. Use when room temperature. Make sure egg whites do not contain any yolk!
- 1 cup (200 g) superfine or regular sugar , divided
- 1 teaspoon cream of tartar
- 3 tablespoons water , cold
- 1 teaspoon vanilla extract
Ingredients for frosting (stabilized whipped cream):
- 3 cups (714 g) heavy cream
- 3/4 cup (90 g) powdered sugar
- 3 teaspoons unflavored gelatin
- 4 tbsp cold water
Ingredients for the vanilla pastry cream filling:
- 5 egg yolks
- 1/2 cup (100 g) sugar
- 4 tablespoon cornstarch
- 1 cup (244 g) milk
- 1 teaspoon vanilla extract
- 1/16 teaspoon salt
- 1/4 cup (59.5 g) heavy cream (whipped) NOTE: this gets mixed in AFTER the pastry cream has been cooked and chilled
Ingredients for the chocolate pastry cream filling:
- 5 egg yolks
- 1/2 cup (100 g) sugar plus 2 tablespoons
- 4 tablespoon cornstarch
- 1 cup (244 g) milk
- 2 tablespoons cocoa powder
- 1/16 teaspoon salt
- 1/4 cup (59.5 g) heavy cream (whipped) NOTE: this gets mixed in AFTER the pastry cream has been cooked and chilled.
Ingredients for the rum syrup:
- 1 cup water
- 1/2 cup (100 g) sugar
- 1 tablespoon plus 1 teaspoon rum extract
Ingredients to assemble the cake:
- 2 cups (473.18 g) crushed peanuts OR sliced almonds , lightly salted
- 8 inch cake board (optional)
Instructions
How to make the sponge cake:
- Preheat oven to 350 degrees and position rack in center of oven
- Grease bottom only of cake pans with butter and flour/cake spray and for added measure, line bottom of pans with parchment paper (DO NOT grease the sides of the pan or your spongecake may not rise properly)
- Combine flour with salt in a small bowl and set aside.
- In a standing mixer, whip the egg whites on medium-low speed until foamy (not stiff) and then add the cream of tartar and continue mixing until the whites become opaque
- Add 1/2 cup sugar slowly to the side of the bowl and increase the speed of the mixer until soft but not stiff peaks form. Scrape the contents to another bowl and set aside
- Using the same bowl, which is now empty, add the egg yolks and whip at high speed for 3 to 5 minutes until lightened in color and the mixture "ribbons" when the beaters are raised
- Slowly add the remaining sugar (ie, 1/2 cup), cold water, and vanilla into the egg yolks and mix until combined on low speed
- Sift the flour onto the egg yolks in two additions, and stir gently with large spatula to combine.
- Gently but thoroughly fold in the whipped egg whites
- Transfer mixture to prepared pans and bake for about 20 to 30 minutes until cooked through; using 3 pans, I only needed 20 minutes.
- Remove from oven, cool for about 10 minutes in the pans and then carefully remove the cakes from the pan (see next step).
- To prevent tearing or crumbling around the edges, I carefully use a knife to loosen the edges with a gentle up-and-down sawing motion (not gliding the knife around), ensuring a smooth release of the cake without damaging its sides.
- After fully cooled, wrap and refrigerate or freeze.
How to make the pastry cream:
- Note that the heavy cream gets whipped separately and is added to the finished pastry cream AFTER it has been cooked and cooled. I do this just before I'm getting ready to assemble the cake.
- In a small bowl, add egg yolks and cornstarch. Whisk to blend and set aside
- In a medium saucepan, add milk, sugar, salt, and vanilla OR chocolate (depending on if you are making the chocolate or the vanilla cream [you will repeat all of these steps to make the other flavor)Heat until small bubbles form (scalded) and remove from heat.
- Temper eggs by adding small amounts (about 1/2 cup/4 ounces) of the hot milk mixture, a little at a time, while whisking very QUICKLY to prevent the eggs from curdling.
- After all of the milk mixture has been added into the eggs/cornstarch, return everything to the saucepan and cook over medium heat and stir constantly until thickened. The mixture thickens quickly (depending on how hight heat is)!! Stir fast and furious with whisk!Continue to heat and stir until it has stopped thickening.
- Cool the pastry cream and refrigerate until ready to use (this is when you do the last step below, adding the whipped cream). TIP: when folding in the whipped cream during next step, you must rewhip the pastry cream if it has set.
- When ready to assemble the cake, whip heavy cream until soft peaks form (overbeating will cause it to turn to butter) and then fold together with cooled pastry cream (rewhip the pastry cream first if it has been refrigerated and/or it has firmed up a lot).
- Repeat all these steps for other flavor (chocolate or vanilla).
How to make stabilized whipped cream
- Add gelatin and water to a small saucepan and heat gently just until the gelatin dissolves. Do not let the mixture set. If the gelatin cools too much you will have lumps or threads of gelatin in your whipped cream.
- Whip the cream and sugar using a standing mixer until the mixture is slightly thickened.
- Add the gelatin mixture slowly and then increase speed to high and continue whipping until the frosting is firm.
How to make the rum syrup:
- Combine all ingredients in a saucepan and heat over medium-high heat until sugar dissolves and then cool or store in refrigerator.
How to assemble the cake:
- Using a teaspoon or small squeeze bottle, distribute the rum syrup evenly over each of the three cake layers.
- Place one cake layer on the bottom of an 8- or 10-inch cake board or cake dish (you may spread some frosting between the dish and bottom layer to prevent the cake from shifting)
- Spread all of the vanilla pastry cream on top on the bottom layer and then top with another layer of sponge cake. Spread all of the chocolate pastry cream on top of middle layer and then top with final layer of sponge cake
- Frost cake, and add generous amount of crushed peanuts or sliced almonds to the sides of the cake. (if you have refrigerated the frosting (made ahead) you may have to rewhip it.
- Decorate the top if desired and refrigerate until serving.
Notes
- 28 ounces of powdered sugar (7 cups)
- 1 cup butter, room temperature
- 1 cup shortening
- 1 teaspoon vanilla extract
- milk to thin frosting if needed
Add powdered sugar slowly, 1 cup at a time.
Mix on medium-to-low speed to prevent air bubbles from forming.
Add vanilla extract and mix to combine. STORAGE
Frosting and fillings keep for about five days in the refrigerator. Cake layers can be frozen for up to 3 months (wrap well in plastic wrap and place in freezer bags).
Store the Italian rum cake in the refrigerator until you are ready to serve it. Leftovers should also be stored in the refrigerator.
I have successfully frozen leftover pieces of cake to save some for a future date. The slices of cake freeze well and taste great! I wrap slices in plastic wrap and then place in a freezer bag. I have not attempted to freeze a whole cake.
Nutrition
Sources: Pastry cream adapted from Good Things by David; Sponge cake from Baking911; Bakery Frosting from My Madison Bistro
Just found this recipe and I’m getting ready to make it now for a retirement party I’m hosting this weekend. I always like to make instead of buy a cake if I have time. Growing up in the New Haven Ct area, this was the cake of choice for special gatherings. My mother’s best friend was a baker and she made the best cakes! They were sheet cakes with half chocolate and half vanilla Italian cream filling between layers with strawberry pie filling and/or maraschino cherries on the filling also, frosted with whipped cream….no nuts. Thanks for the memories, can’t wait to taste this when it’s done (but I’m using my Nana’s Italian cream recipe that we always fought over).
I just finished making this for my dad’s birthday. My husband-to-be is from South Philly, and he and my dad both LOVE Italian rum cake. We usually buy it from a local bakery but this year, I thought I’d try my hand at making it. Haven’t tasted it yet, but it looks beautiful!!
I grew up in South Philadelphia and never saw this made with peanuts. However, you could have it made with “jimmies” (black sprinkles) instead of sliced almonds, which is the way we always ate it.
I was raised by my grandmother back in the 50s in east Hollywood Los Angeles California both my parents worked and lived in the San Fernando valley so they thought I’d be more stable at my grandmothers house we were very near the Los Feleze area there was an Italian bakery there on Los feleze called Sarnos bakery their pastrys we’re superb! Like you their Rum cake was to die for! And was the cake of choice for every one of my birthdays! Made much like yours except for the nuts they used Almonds chopped and sliced they went out of business back in the early 70s 2nd generation ran it out of business. I will try your recipe changing only the nuts oh, I forgot to mention they had pine nuts scattered here and there! I would have to change it to sugar free if possible as I am diabetic! I look forward to it as I have not had this Rum cake in close to 50 years.
In New York it is the almonds.
My husband’s family is from northeast Philly and the rum cake they used to buy had sliced almonds, I’ll be making this for my mother-in-law this Christmas as she hasn’t had a descent rum cake since we moved to Florida. Thanks for the recipe.
Hi Marie. I’m from South Philly too. I remember Italian Rum Cake as “the Birthday cake.” Had to have it and you are on point with the icing and the peanuts being crushed smaller (more like those used as topping at the ice cream parlor. ??
I’m from south of Boston area …..lots of Italians…the rum cake above. … was a traditional wedding cake in that area. I don’t recall the peanuts at all, but the frosting was more of a whipped cream frosting……delish!
They use Almonds in R.I. and peaches in one layer..Love you his cake..I love making it with fresh Whip Cream
Oh that sounds good! I think there are a bunch of ways this can be customized. Best cake ever, isn’t it?
Omg! This is a great recipe, I make it for my massage therapy co-workers. They love it!!!
That’s so nice of you! They are lucky!
In upstate NY they use almonds instead of peanuts. I think it depends on where your Italian roots come from. We also used this cake for celebrations and I have looked forever for a recipe to try to and make since there are no Italian bakeries in western Kansas. I am also looking for pusties, vodka riggies, and cannolis.
Oh, my husband LOVES pusties! I have a few recipes, and I’ve been meaning to try them for years. My mom makes connolis all the time but her recipe for the shell is a bit unconventional – she doesn’t like a shell that is too too hard. it’s good though! I’ll have to ask my brother in law about vodka riggies!
i JUST MADE MY VANILLA FILLING AND ITS PRETTY RUNNY. IS THAT THE WAY IT SUPPOSE TO BE?
Hello – is it still hot? The cream will continue to thicken as it cools. It’s hard to give you advice because I can’t see how thin it is…maybe this article on a similar cream will help, I hope!
This is my all time favorite cake!! My Husband is from South Philly and also Italian. .. I make this cake, but, I’ve been wondering …. if I make a larger cake can I freeze leftovers???
Yes!! I’ve frozen leftovers with no problems. I absolutely love this cake too. I think I’ll make it for Mother’s day, because it’s been too long. Try it with the stabilized whipped cream…so good. I just wrap it tightly in plastic wrap and them place in a freezer bag. You may have to cut the leftover cake in smaller pieces depending on how much is left.
Omg we must have been separated at birth, this would have to be “my” most loved things on this planet. Not even the best chocolate cake ever made can can hold a candle to this cake.
Thank you for sharing the recipe, I have been lookig for sooo long for this that its not funny.
Anyway just thought i would give a shout out to you and say thank you sister lol
Lol, it’s true!! This is hands down the best cake ever, i agree! I’m so glad you found it. Try it with the stabilized whipped cream frosting, which is my new favorite. Let me know how you make out, sister! 🙂
I tried this recipe over Easter this year. The 3 pan strategy is excellent and the pastry cream was great.
I was not a fan of the frosting. Too sweet. My husband and I had an Italian tort rum cake as our wedding cake. The bakery (Italian family run) used a frosting that was cream cheese based which I understand is more in keeping with Italian tradition. I’ll make this again with a different frosting and a bit more rum syrup
Hi Danielle! I’m so glad you liked the cake – I agree with you about the frosting (except I’m more of a fan of the stabilized whipped cream frosting vs the bakery frosting and not a cream cheese frosting for this particular cake but, of course, it’s completely customizable). I’m not sure if you noticed the link for a stabilized whipped cream frosting at the end of the post/recipe (may be worth a try vs the cream cheese frosting and more flavor neutral). Funny you mention the cream cheese frosting because my Italian-born mom made hers that way alllll the time, but none of the Italian bakeries in my area ever did so (ie, Italian bakeries in Philadelphia), and that’s what prompted me to find a more “bakery-style” approach. I do love cream cheese frosting on a carrot cake though – yum!