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Brooklyn Blackout Cake Recipe


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4.1 from 38 reviews

  • Author: Emma
  • Total Time: 1 hour 50 minutes
  • Yield: 12 servings 1x

Description

Brooklyn Blackout Cake is a rich, decadent chocolate cake famous for its multi-layered structure filled with luscious chocolate pudding and topped with a silky chocolate frosting. This moist and intensely chocolatey cake is coated with cake crumbs for an irresistible texture contrast, making it a perfect dessert for chocolate lovers.


Ingredients

Scale

Cake

  • 2 cups all-purpose flour
  • 2 cups granulated sugar
  • ¾ cup unsweetened Dutch-process cocoa powder
  • 2 tsp baking soda
  • 1 tsp baking powder
  • ½ tsp salt
  • 1 cup buttermilk, at room temperature
  • ½ cup vegetable oil
  • 2 large eggs, at room temperature
  • 2 tsp pure vanilla extract
  • 1 cup hot brewed coffee

Chocolate Pudding Filling

  • 2 ½ cups whole milk
  • ¾ cup granulated sugar
  • ¼ cup unsweetened cocoa powder
  • ¼ cup cornstarch
  • ¼ tsp salt
  • 4 oz semisweet chocolate, finely chopped
  • 1 tsp pure vanilla extract

Chocolate Frosting

  • 8 oz semisweet chocolate, finely chopped
  • 1 cup heavy cream
  • 2 tbsp light corn syrup
  • 1 tsp pure vanilla extract

Instructions

  1. Preheat and Prepare Pans: Preheat oven to 350°F (175°C). Grease and flour two 9-inch round cake pans and line the bottoms with parchment paper to ensure easy cake release.
  2. Mix Dry Ingredients: In a large bowl, sift together flour, sugar, cocoa powder, baking soda, baking powder, and salt to combine and aerate the mixture.
  3. Combine Wet Ingredients: In another bowl, whisk together the buttermilk, vegetable oil, eggs, and vanilla extract until smooth and uniform.
  4. Blend Wet and Dry Ingredients: Gradually add the wet ingredients to the dry ingredients, gently mixing until just combined to avoid overmixing.
  5. Add Coffee: Stir in the hot brewed coffee until the batter is smooth and slightly thin in consistency, which helps create a moist cake.
  6. Divide Batter: Pour the batter evenly between the prepared cake pans to ensure even baking.
  7. Bake: Bake in the preheated oven for 30 to 35 minutes or until a toothpick inserted in the center comes out clean, indicating doneness.
  8. Cool Cakes: Allow the cakes to cool in their pans for 10 minutes, then remove from pans and transfer to wire racks to cool completely.
  9. Prepare Pudding Filling: In a saucepan, whisk together milk, sugar, cocoa powder, cornstarch, and salt until smooth to avoid lumps.
  10. Cook Pudding: Place the saucepan over medium heat, stirring constantly until the mixture thickens and begins to bubble, forming a smooth pudding.
  11. Add Chocolate and Vanilla: Remove from heat and stir in finely chopped semisweet chocolate and vanilla extract until fully melted and incorporated.
  12. Chill Pudding: Transfer pudding to a bowl, cover with plastic wrap placed directly on the surface to prevent skin, and refrigerate until completely chilled.
  13. Make Chocolate Frosting – Heat Cream Mixture: Place chopped semisweet chocolate in a heatproof bowl. In a small saucepan, heat heavy cream and corn syrup over medium heat until it simmers gently.
  14. Combine Cream and Chocolate: Pour the hot cream mixture over the chopped chocolate and let it sit for 2 to 3 minutes to soften the chocolate.
  15. Mix Frosting: Stir until the mixture is smooth and glossy, then add vanilla extract and stir to combine.
  16. Cool Frosting: Let the frosting cool, stirring occasionally, until it reaches a spreadable consistency suitable for frosting the cake.
  17. Level Cakes: If necessary, use a serrated knife to level the tops of the cakes for even layering.
  18. Slice Cake Layers: Cut each cooled cake horizontally into two equal layers, creating four layers total.
  19. Reserve Cake Crumbs: Reserve one cake layer and crumble it finely to use as the cake coating later.
  20. Assemble Cake – First Layers: Place one cake layer on a serving plate and spread one-third of the chilled chocolate pudding evenly over it.
  21. Repeat Layering: Repeat the layering process with two more cake layers, spreading pudding between each layer for a moist interior.
  22. Top Layer: Place the final cake layer on top without pudding.
  23. Frost Cake: Use the prepared chocolate frosting to coat the top and sides of the assembled cake smoothly and evenly.
  24. Apply Cake Crumbs: Press the reserved crumbled cake layer onto the frosted cake to create the signature crumb coating.
  25. Chill Cake: Refrigerate the fully assembled cake for at least 1 hour to allow flavors to meld and frosting to set.
  26. Serve: Slice the cake and enjoy this rich, chocolatey dessert masterpiece.

Notes

  • Use room temperature ingredients for better batter integration and texture.
  • Hot coffee enhances the chocolate flavor and keeps the cake moist.
  • Make sure pudding is fully chilled before assembling to prevent melting the frosting.
  • Reserve cake crumbs for the coating to add texture and to hide any imperfections in frosting.
  • Refrigerate cake after assembling to help set layers and improve slicing.
  • Use a serrated knife and gentle sawing motion when layering and slicing to prevent crumbling.
  • Prep Time: 30 minutes
  • Cook Time: 35 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American