Blackout Cake

Blackout Cake is an intensely chocolatey layer cake known for its moist crumb, luscious chocolate pudding filling, silky chocolate frosting, and signature coating of chocolate cake crumbs.

Every bite delivers deep cocoa flavor and a rich, velvety texture, making it an unforgettable dessert for birthdays, celebrations, or any occasion that calls for a true chocolate lover's treat.

🕒 Prep Time 45 mins

🔥 Cook Time 35 mins

🍽️ Servings 12 people

Why You Love This Recipe

Deep Chocolate Flavor
Deep, rich chocolate flavor in every layer.

Moist Cake & Creamy Filling
Moist cake paired with creamy chocolate pudding filling.

Decadent Frosting
Covered in decadent chocolate frosting and cake crumbs.

Perfect for Celebrations
Perfect for birthdays, holidays, and special events.

Bakery-Style Presentation
Impressive bakery-style presentation.

Make-Ahead Friendly
Can be made a day ahead for even better flavor.

Chocolate Lover's Dream
A dream dessert for chocolate enthusiasts.

Tools and Preparation

Essential Tools and Equipment

Two 8-inch round cake pans
Mixing bowls
Electric mixer or stand mixer
Whisk
Rubber spatula
Saucepan
Offset spatula
Cooling racks
Serrated knife
Cake turntable (optional)

Importance of Each Tool

Cake Pans
Ensure evenly baked layers.

Mixing Bowls
Keep wet and dry ingredients organized.

Electric Mixer
Produces a smooth batter and frosting.

Whisk
Blends dry ingredients and pudding without lumps.

Rubber Spatula
Folds batter gently and scrapes bowls clean.

Saucepan
Cooks the chocolate pudding filling.

Offset Spatula
Makes frosting and smoothing easier.

Cooling Racks
Prevent condensation and soggy cake bottoms.

Serrated Knife
Levels cake layers neatly.

Cake Turntable
Helps with even frosting application.

Ingredients

For the Chocolate Cake:

2 cups all-purpose flour
¾ cup unsweetened cocoa powder
2 teaspoons baking powder
1½ teaspoons baking soda
½ teaspoon salt
2 cups granulated sugar
2 large eggs
1 cup whole milk
½ cup vegetable oil
2 teaspoons vanilla extract
1 cup hot brewed coffee or hot water
½ cup sour cream

For the Chocolate Pudding Filling:
2 cups whole milk
½ cup granulated sugar
¼ cup cornstarch
¼ cup unsweetened cocoa powder
4 ounces semisweet chocolate, chopped
2 egg yolks
1 tablespoon unsalted butter
1 teaspoon vanilla extract

For the Chocolate Frosting:
1 cup unsalted butter, softened
3½ cups powdered sugar
¾ cup unsweetened cocoa powder
¼ cup heavy cream
2 teaspoons vanilla extract
Pinch of salt

Steps To Create Recipe

1. PREPARE THE OVEN
Preheat the oven to 350°F (175°C). Grease and line two 8-inch round cake pans with parchment paper.

2. MAKE THE CAKE BATTER
Whisk together the flour, cocoa powder, baking powder, baking soda, salt, and sugar. Add the eggs, milk, oil, vanilla, and sour cream, mixing until smooth. Gradually stir in the hot coffee until fully incorporated.

3. BAKE
Divide the batter evenly between the pans and bake for 30–35 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.

4. COOL THE CAKES
Let the cakes cool in the pans for 10 minutes, then transfer them to wire racks to cool completely.

5. PREPARE THE CHOCOLATE PUDDING
In a saucepan, whisk together the sugar, cornstarch, cocoa powder, and milk. Cook over medium heat until thickened. Temper the egg yolks, return them to the pan, and cook briefly. Remove from the heat and stir in the chopped chocolate, butter, and vanilla until smooth. Chill until spreadable.

6. MAKE THE FROSTING
Beat the butter until creamy. Gradually add the powdered sugar, cocoa powder, heavy cream, vanilla, and salt until light and fluffy.

7. ASSEMBLE THE CAKE
Level the cake layers if needed. Spread the chocolate pudding filling between the layers, then apply a thin crumb coat of frosting. Chill briefly before covering the entire cake with the remaining frosting.

8. DECORATE
Reserve or crumble a small amount of chocolate cake and press the crumbs onto the sides and top of the frosted cake for the traditional blackout finish.

How to Serve

Blackout Cake is best served:

At Room Temperature
At room temperature for the softest texture.

With Fresh Berries
With fresh raspberries or strawberries.

With Ice Cream
Alongside vanilla ice cream.

With Coffee
Paired with coffee or espresso.

Garnished
Garnished with chocolate curls or cocoa powder.

As a Centerpiece
As the centerpiece for birthdays and celebrations.

Common Mistakes to Avoid

Overbaking
Overbaking the cake layers, resulting in dryness.

Filling Before Cooling
Filling the cake before it has completely cooled.

Warm Pudding
Using warm pudding, which can make the layers slide.

Overmixing
Overmixing the batter after adding the hot liquid.

Skipping Crumb Coat
Skipping the crumb coat before final frosting.

Refrigerating Too Long
Refrigerating too long without bringing the cake back to room temperature before serving.

Storage & Reheating Instructions

Room Temperature: Store covered for up to 1 day in a cool environment.

Refrigerator: Refrigerate in an airtight container for up to 5 days.

Freezer: Wrap individual slices or the entire cake tightly and freeze for up to 2 months. Thaw overnight in the refrigerator.

Reheating: This cake is best enjoyed at room temperature. If refrigerated, let slices sit out for 20–30 minutes before serving.

Frequently Asked Questions

Q: Why is it called Blackout Cake?
A: The name comes from its intensely chocolatey appearance, including the chocolate cake, pudding filling, frosting, and coating of cake crumbs.

Q: Can I make it ahead of time?
A: Yes. In fact, the flavor often improves after resting overnight in the refrigerator.

Q: Can I skip the pudding filling?
A: Yes, though the pudding is part of the cake's signature texture and richness. Chocolate buttercream or ganache can be substituted.

Q: Is coffee necessary?
A: No. Hot coffee enhances the chocolate flavor without making the cake taste like coffee, but hot water can be used instead.

Q: Can I use Dutch-process cocoa?
A: Yes, provided it's compatible with the leavening agents in your recipe. Natural cocoa also works well.

Q: How do I get neat slices?
A: Chill the cake briefly, then cut with a sharp knife wiped clean between slices.

Final Thoughts

Blackout Cake is the ultimate dessert for serious chocolate fans. Its combination of moist chocolate cake, silky pudding filling, creamy frosting, and chocolate crumb coating creates a luxurious dessert that's both elegant and comforting. Whether served at a birthday celebration or enjoyed as a weekend baking project, it's guaranteed to impress.

Blackout Cake (Print Version)

By Your Blog Name

Prep Time:
45 mins

Cook Time:
35 mins

Servings:
12 Servings

Ingredients Needed

Chocolate Cake:

• 2 cups all-purpose flour
• ¾ cup cocoa powder
• 2 teaspoons baking powder
• 1½ teaspoons baking soda
• ½ teaspoon salt
• 2 cups granulated sugar
• 2 eggs
• 1 cup whole milk
• ½ cup vegetable oil
• 2 teaspoons vanilla extract
• 1 cup hot coffee or hot water
• ½ cup sour cream

Chocolate Pudding Filling:

• 2 cups whole milk
• ½ cup granulated sugar
• ¼ cup cornstarch
• ¼ cup cocoa powder
• 4 ounces semisweet chocolate
• 2 egg yolks
• 1 tablespoon butter
• 1 teaspoon vanilla extract

Chocolate Frosting:

• 1 cup softened butter
• 3½ cups powdered sugar
• ¾ cup cocoa powder
• ¼ cup heavy cream
• 2 teaspoons vanilla extract
• Pinch of salt

Directions

1. Preheat the oven to 350°F (175°C).
2. Prepare and bake the chocolate cake layers.
3. Cool completely.
4. Cook the chocolate pudding filling and chill until thickened.
5. Beat together the chocolate frosting ingredients.
6. Layer the cakes with pudding filling.
7. Frost the outside and decorate with chocolate cake crumbs.
8. Slice and serve.