Chocolate Mascarpone Layer Cake

The high fat content of mascarpone (approx. 40-45%) allows it to form a stable cream without gelatine, purely through the crystallisation of milk fat and the setting of cocoa butter in the chocolate. This cake is a prime example of 'fat-based' creams, where temperature control is the key to success. A truly decadent dessert where every bite melts silkily in the mouth.
🕒 Prep Time 35 mins
🍳 Cook Time 40 mins
Total Time 3 hrs 20 mins
🍽️ Servings 10 servings
🔥 Calories 610 kcal
🌍 Cuisine Modern Baking

Ingredients

Equipment Needed

  • Springform cake tin
  • Food mixer
  • Bain-marie bowl
  • Silicone spatula

Allergen Information

⚠️ Milk
⚠️ Cereals containing gluten
⚠️ Eggs

Instructions

1

Making the sponge: Preheat oven to 180°C. Beat the egg whites with half the sugar until stiff peaks form. Mix the yolks with the remaining sugar until pale.

Tip: Sponge relies on 'physical leavening' (air bubbles). The egg white foam provides the structure.
2

Gently fold the egg white foam into the yolk mixture, then sift in the flour, cocoa powder, baking powder, and salt. Fold together carefully.

Tip: Fat (yolk) destroys foam, so handle with care. Mixing should be decisive but gentle (folding).
3

Bake at 180°C for approx. 25-30 minutes (skewer test). Allow to cool.

Tip: Do not open the oven door in the first 20 minutes, or the cake will collapse!
4

Cream: Melt the chocolate over steam, then cool to lukewarm (approx. 30-35°C).

Tip: If the chocolate is hot, it will melt the mascarpone fat, making the cream runny. If too cold, it will be lumpy.
5

Place the mascarpone and cream in a bowl and whip to medium stiffness.

Tip: The two fats (cheese and cream) need to form an emulsion. You can whip them together if both are cold.
6

Drizzle the lukewarm chocolate into the foam and mix until smooth with quick movements.

Tip: Work quickly so the chocolate doesn't set prematurely (avoiding stracciatella effect), ensuring a homogeneous cream.
7

Fill the cake and refrigerate.

Tip: During cooling, the cocoa butter and milk fat recrystallise, providing stability.

Recipe FAQ

Why did the cream become grainy?
You overwhipped the mascarpone and cream. Mechanical action ruptures the membranes of fat globules, causing fat to separate (turning into butter). Only whip until it holds its shape!
Why is the sponge hard?
You worked in too much flour, overmixed it (gluten development), or overbaked it (drying out).

Ingredients

  • 200 g Dark chocolate (min. 50%)
  • 500 g Mascarpone (cold)
  • 200 ml Whipping cream (min 30%, cold)
  • 150 g Caster sugar
  • 4 whole Eggs (separated)
  • 150 g Plain flour
  • 1 sachet Baking powder
  • 30 g Cocoa powder
  • 1 pinch Salt