Atomic Cake Recipe

The Atomic Cake is a retro Chicago classic featuring layers of chocolate, banana, and white cake stacked with pudding, fresh fruit, and whipped cream. It’s rich, colorful, and perfect for birthdays, parties, or any celebration.

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Prep Time 30

Cook Time 30

Total Time 1

Servings: 12

Course: Dessert

Cuisine: American

Calories: 420

Ingredients Equipment Method Notes

Ingredients

Cake Layers:
1 box chocolate cake mix plus ingredients listed on box
1 box banana cake mix plus ingredients listed on box
1 box white cake mix plus ingredients listed on box
Filling & Toppings:
2 bananas sliced
1 cup fresh strawberries sliced
1 package instant vanilla pudding mix 3.4 oz
2 cups cold milk
2 cups heavy whipping cream
½ cup powdered sugar
1 tsp vanilla extract
Chocolate syrup or ganache optional, for topping

Equipment

3 round cake pans (8–9 inch)
Mixing bowls
Electric mixer or whisk
Spatula
Cooling rack
Cake stand or serving plate

Method

Bake Cake Layers: Prepare each cake mix separately and bake in round pans according to package directions. Let cool completely on a rack.
Prepare Pudding: Whisk pudding mix with cold milk until thickened. Chill until ready to assemble.
Whip the Cream: Beat heavy cream, powdered sugar, and vanilla until soft peaks form. Keep chilled.
Assemble Layers: Place the chocolate cake on a cake stand. Spread pudding and top with banana slices. Add the banana cake layer, more pudding, and sliced strawberries. Finish with the white cake layer.
Frost & Decorate: Cover the cake with whipped cream. Drizzle with chocolate syrup or ganache. Garnish with extra fruit.
Chill Before Serving: Refrigerate for at least 1 hour to set layers. Slice and enjoy!

Notes

Make cake layers a day ahead for easier assembly.
Don’t overload fruit between layers or the cake may slide.
For a lighter version, use sugar-free pudding and light whipped cream.
Store leftovers in the refrigerator for up to 3 days.