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Chocolate mousse cake

Chocolate mousse cake can be eaten anytime, but especially when it gets cold outside. A cake for young and old alike.

Preparation time

10 min preparation + 10 min cooking


16 servings



Print this recipe


For 16 servings

For the base

  • 20 Oreo cookies
  • 65 g melted hard margarine

For the chocolate mousse layer

  • 225 g milk chocolate *
  • 4 eggs
  • 200 g Zùsto
  • 1 tsp vanilla extract
  • 140 g hard margarine at room temperature
  • 300 ml full cream
  • 20 g Zùsto

*Chocolate can also be substituted with our chocolate callets. These contain fewer calories and are better for our health.


  • Round springform tin (I used an 18 cm tin, but you can also use a slightly larger one. The cake is less high, but still just as delicious)
  • Saucepan

Preparation method

For the base

  1. Preheat the oven to 180°C. Line a baking tin with baking paper. Tip: grease the tin with margarine. Then cut a round the same size as the base and strips to cover the sides. Stick these into the tin.
  2. Crumble the cookies in a food processor. Mix in the melted butter.
  3. Tip the cookie crumbs out onto the bottom of the baking tin and press firmly with the back of a spoon.
  4. Bake for 10 min. Allow to cool completely while you make the filling.

For the chocolate mousse layer

  1. Melt the chocolate in the microwave on a low wattage setting and melt for bursts of 30 seconds at 600w, briefly stirring the chocolate between each interval). When all the chocolate is almost melted, keep stirring until the last bit also melts away. Set to one side.
  2. In a small saucepan put the Zùsto and the eggs. Bring to a boil while continuing to stir with a whisk. When the mixture begins to thicken, remove the saucepan from the heat. Do not cook for too long because then you get fried eggs :). The mixture must stick to the back of your spoon.
  3. Remove the saucepan from the heat and add the melted chocolate. Add the vanilla extract and set aside for a while (stirring occasionally).
  4. Blend the margarine until soft for a few minutes. And little by little, pour in the chocolate batter (make sure it is no longer hot!).
  5. In another mixing bowl, partly whip the cream. Add the 20g Zùsto and continue to beat the cream. Lightly scoop this under the chocolate batter and pour into the cake tin.
  6. Place in the refrigerator for 6 h.

Nutritional values

Chocolate mousse cake 1/16 of the cake (+/- 71 g)
Energy (in kcal) 333 kcal
Fat (g) 26.3 g
Of which saturates 12 g
Carbohydrates (g) 17 g
Fibre (g) 3.6 g
Protein (g) 3.2 g

About Yasmine Marchal

Hi, I’m Yasmine from the pastry blog Tartes Yaya. As well as running my blog, I work full time as an IT project manager. Baking is my creative outlet, but I also enjoy sports (jogging, hiking, aerial dance and horse riding).

I’m mum to an 8 year old boy, Ilyas, and a 6 year old girl, Fatou. In August 2018, Ilyas was diagnosed with type 1 diabetes (an autoimmune disease that is not caused by eating too much sugar… just to clarify that! ;)).Even though a type 1 diabetic can eat whatever they want and don’t have to follow a special diet, their body has greater difficulty in processing real sugars because the body is not able to produce insulin itself or manage insulin spikes properly.

My son’s diabetes led me to discover Zùsto and since then, Zùsto has been my favourite sugar substitute!

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