This chocolate sponge cake with vanilla custard cream is a timeless dessert that feels familiar, comforting, and elegant at the same time. The cocoa sponge is light and airy, while the vanilla custard brings a smooth, creamy contrast that balances the chocolate perfectly. It is not overly sweet and relies on simple ingredients and classic techniques, making it ideal for family gatherings, birthdays, or a relaxed weekend dessert.
Ingredients
Vanilla custard cream
- 2 eggs
- A pinch of salt
- 25–40 g cornstarch, depending on desired thickness
- 80–100 g sugar, to taste
- 400 ml milk
- 10 g vanilla sugar or 1 teaspoon vanilla extract
- 40 g butter
Chocolate sponge cake
- 3 eggs
- 100 g sugar
- A pinch of salt
- 70 g all-purpose flour
- 30 g cocoa powder
- ½ teaspoon baking powder
- 4–5 tablespoons milk, optional
Instructions
Prepare the vanilla custard cream
In a saucepan, whisk the eggs with sugar, salt, and cornstarch until smooth. Slowly pour in the milk while whisking to avoid lumps.
Place the saucepan over medium heat and cook, stirring constantly, until the mixture thickens into a smooth custard. Remove from heat, add vanilla and butter, and mix until fully melted and glossy.
Transfer the custard to a bowl and cover with plastic wrap placed directly on the surface. Let it cool completely at room temperature.
Make the chocolate sponge
Preheat the oven to 180°C. Line a 20 cm round cake pan with parchment paper.
In a large bowl, beat eggs with sugar and salt until pale, fluffy, and tripled in volume.
In a separate bowl, sift flour, cocoa powder, and baking powder. Gently fold the dry ingredients into the egg mixture in batches.
If the batter feels too thick, add milk one tablespoon at a time, folding gently to keep the mixture airy.
Pour the batter into the prepared pan and level the surface. Bake for 20–25 minutes, or until a toothpick inserted in the center comes out clean.
Allow the cake to cool for 10 minutes in the pan, then transfer to a wire rack and cool completely.
Assemble the cake
Slice the cooled sponge horizontally into two even layers. Spread an even layer of vanilla custard cream over the bottom layer, then place the second layer on top.
If desired, spread a thin layer of custard on top or leave it plain. Refrigerate the cake for at least one hour before serving.
Why This Cake Works
The sponge relies on whipped eggs rather than fat, which keeps it light and soft. Cocoa adds depth without heaviness, while the custard provides richness and moisture. Together, they create a balanced dessert where neither element overpowers the other.
Storage Tips
Store the assembled cake in the refrigerator, covered, for up to three days. The flavors improve after a few hours of chilling, making it ideal to prepare ahead of time.
Variations
- Add a layer of sliced bananas or berries between sponge and custard
- Soak the sponge lightly with milk or coffee for extra moisture
- Replace vanilla custard with chocolate or caramel custard
- Finish with cocoa powder, grated chocolate, or fresh fruit
Serving Suggestions
Serve chilled, sliced cleanly with a sharp knife. This cake pairs well with coffee, espresso, or a simple glass of milk. It also works beautifully as a base for celebration decorations without needing heavy frosting.
Nutritional Notes
This dessert provides a balance of carbohydrates, fats, and protein. Using custard instead of buttercream keeps it lighter while still offering a creamy texture. Enjoyed in moderation, it fits well into a homemade dessert routine.
Chocolate sponge cake with vanilla custard cream is a reliable classic that never goes out of style. Simple, soft, and comforting, it is the kind of cake people remember and ask for again.
