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Blackberry Blackout Cake


  • Author: olivia
  • Total Time: 80 minutes
  • Yield: 12 servings 1x
  • Diet: Vegetarian

Description

A delightful dessert that combines rich chocolate flavor with tart fresh blackberries, perfect for special occasions.


Ingredients

Scale
  • 56g (2 oz) semi-sweet chocolate chips
  • 1/2 cup black cocoa powder
  • 1/2 cup milk (2% recommended)
  • 1/4 cup sour cream
  • 2 cups cake flour
  • 1 tsp baking powder
  • 1 tsp baking soda
  • 1 tsp kosher salt
  • 1 cup unsalted butter (room temperature)
  • 1 1/3 cup granulated sugar
  • 4 large eggs
  • 2 tsp vanilla extract
  • 200g (7 oz) semi-sweet chocolate chips (for ganache)
  • 1/2 cup heavy cream (for ganache)
  • 2 tbsp honey (for ganache)
  • 2 tbsp black cocoa powder (for ganache)
  • 1/3 cup sour cream (for ganache)
  • 1.1 kg (2.5 lbs) fresh blackberries (for decoration)
  • Iridescent luster dust (optional)

Instructions

  1. Preheat the oven to 350°F (175°C). Grease and line three 6-inch cake pans with parchment paper.
  2. Melt chocolate chips, milk, sour cream, and cocoa powder over simmering water until smooth, then set aside to cool.
  3. Sift together cake flour, baking powder, baking soda, and kosher salt; set aside.
  4. Cream together room temperature butter and granulated sugar until light and fluffy. Add eggs one at a time, mixing well after each addition, then add vanilla.
  5. Pour the cooled chocolate mixture into the egg mixture and mix until smooth. Gradually add dry ingredients, alternating with flour mixture, mixing until combined.
  6. Divide batter among prepared cake pans and bake for 50 minutes, rotating halfway through. Test with a toothpick for doneness.
  7. Cool cakes in pans for a few minutes, then transfer to a wire rack to cool completely (about 2 hours).
  8. For ganache, melt chocolate chips, heavy cream, honey, and cocoa powder over simmering water until smooth. Whisk in sour cream and refrigerate for 15-20 minutes to firm up.
  9. Level the cake layers if necessary. Assemble by spreading ganache on top of each layer, stacking them.
  10. Frost the entire cake with remaining ganache and decorate with fresh blackberries. Dust with iridescent luster dust if desired.
  11. Chill the cake for 1 hour before serving.

Notes

Store leftovers in an airtight container in the refrigerator for up to four days. Freeze slices wrapped tightly if needed.

  • Prep Time: 30 minutes
  • Cook Time: 50 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 450
  • Sugar: 30g
  • Sodium: 300mg
  • Fat: 22g
  • Saturated Fat: 10g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 60g
  • Fiber: 4g
  • Protein: 6g
  • Cholesterol: 80mg

Keywords: blackberry cake, chocolate cake, dessert, special occasions