Berry mousse chocolate cake

The depth of chocolate and the acidity of berries is one of the most reliable marriages in patisserie. This cake is dominated by a play of textures: a crunchy biscuit base, a dense, almost truffle-like chocolate layer, and a light, airy fruit mousse. It’s not a quick bake, but the visual appeal of the layers and the harmony of flavours make it worth every moment of anticipation.
🕒 Prep Time 50 mins
🍳 Cook Time 5 mins
Total Time 55 mins
🍽️ Servings 10 servings
🔥 Calories 480 kcal
🌍 Cuisine International

Ingredients

Equipment Needed

  • Springform tin (24 cm): For layering.
  • Whisk: For whipping the cream.
  • Sieve: For removing seeds from the fruit purée.
  • Bain-marie (pan + bowl): For gently melting the chocolate.

Allergen Information

⚠️ Milk
⚠️ Cereals containing gluten

Instructions

1

Crush the biscuits into fine crumbs, mix with the melted butter and a pinch of salt. Press into the bottom of a springform tin and chill in the fridge for 30 minutes.

Tip: The salt deepens the chocolate flavour later on.
2

Melt the dark chocolate over a bain-marie (steam), then allow to cool to room temperature (approx. 30-35°C).

Tip: If the chocolate is too hot, it will collapse the whipped cream. Ensure the bottom of the bowl does not touch the water in the pan.
3

Soak 3 gelatine leaves in cold water for 5 minutes. Meanwhile, whip 200 ml of the cream with the vanilla to soft peaks.

Tip: Soft peaks are easier to fold than stiff peaks.
4

Squeeze out the soaked gelatine, dissolve in 2 tablespoons of hot water, then mix into the tepid melted chocolate. Gently fold this chocolate mixture into the whipped cream.

Tip: Work quickly, as the chocolate will start to set (crystallise) rapidly upon contact with the cold cream.
5

Pour the chocolate mousse over the biscuit base, smooth it out, and refrigerate for 2 hours to set.

Tip: Complete setting is essential for distinct layers.
6

Purée the fruit, then pass through a sieve to remove the seeds. Mix in the sugar.

Tip: Seedless purée provides a more elegant texture.
7

Soak the remaining 3 gelatine leaves, dissolve in a little warm water (or heat a small portion of the purée and dissolve it in that), then mix into the fruit purée.

Tip: Tempering the temperature is important here too!
8

Whip the remaining 200 ml cream to stiff peaks and fold into the gelatine fruit purée. Pour over the top of the chocolate layer.

Tip: The fat content of the cream 'wraps' the fruit flavour, making it silkier.
9

Chill for a further 3 hours. Decorate with fresh fruit and chocolate shavings before serving.

Tip: Briefly warming the outside of the tin with a hairdryer helps to remove the ring easily.

Recipe FAQ

Why did the chocolate mousse collapse?
The chocolate was likely too warm when added to the whipped cream, melting the fat.
Can I use frozen fruit?
Yes, but defrost it first and use the juices for the purée as well.

Ingredients

  • 250 g High-quality dark chocolate (min. 50%)
  • 400 ml Double cream (cold)
  • 200 g Mixed berries (raspberry, blueberry, strawberry)
  • 100 g Icing sugar
  • 6 Gelatine leaves
  • 200 g Butter biscuits or digestives
  • 100 g Butter (melted)
  • 1 tsp Vanilla extract
  • 1 pinch Salt