Ingredients
Chocolate Sponge
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4 large eggs, room temperature
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¾ cup (150 g) sugar
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½ cup (60 g) all-purpose flour
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¼ cup (30 g) cocoa powder
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1 tsp baking powder
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¼ tsp salt
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2 tbsp milk
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2 tbsp melted butter or oil
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1 tsp vanilla extract
Cream Filling
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1 cup heavy whipping cream (cold)
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¼ cup powdered sugar
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1 tsp vanilla extract
Instructions
Make the Chocolate Sponge
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Preheat oven to 350°F (175°C). Line an 8-inch round pan or jelly roll pan.
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Beat eggs and sugar on high speed 5–7 minutes until pale, thick, and tripled in volume.
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Sift together flour, cocoa powder, baking powder, and salt.
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Gently fold dry ingredients into egg mixture in batches.
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Mix milk, melted butter, and vanilla; fold in carefully.
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Pour batter into pan and smooth top.
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Bake 18–22 minutes until springy to the touch.
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Cool completely before filling.
Make the Cream Filling
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Whip cream, powdered sugar, and vanilla until soft–medium peaks.
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Chill until ready to use.
Assemble
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Layer cake: Slice sponge horizontally, spread cream, and top with second layer.
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Roll cake: If baked in a sheet, spread cream and roll gently.
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Dust with powdered sugar or drizzle melted chocolate.
Pro Tips
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Don’t overmix or sponge will deflate.
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Use room-temp eggs for maximum volume.
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For extra moisture, brush cake with simple syrup or milk.
Variations
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Chocolate ganache topping
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Add berries or bananas inside
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Swap cream for chocolate mousse