Chocolate Petit Gâteau with preserved walnuts

I’m not a pastry Chef, but even I could make it. And, I tell you what: this Chocolate Petit Gâteau with preserved walnuts is THE BEST and THE MOST DELICIOUS Chocolate Petit Gâteau that could possibly be created by humankind!

No jokes, pure facts.

You can watch the full video of me making Chocolate Petit Gâteau with preserved walnuts here

Part 1 - Chocolate mousse

  • 140g 70% Chocolate
  • 50g Egg yolks
  • 27g Sugar
  • 0.6g Salt
  • 4g powdered Gelatine
  • 17.6g cold Water
  • 250g 40% Cream

Ingredients, you’ll need


  1. Bloom the gelatine in cold water (for at least 20-30 min).
  2. Whip cream to medium peaks and keep it aside (maybe put it in the fridge for now).
  3. Set up 2 double-boilers.
  4. Melt chocolate over 1 double boiler.
  5. Whisk together egg yolks, sugar and salt and heat over 2nd double boiler to reach 82C / 180F (while continuously whisking).
  6. Temper chocolate, and then mix it with the egg mixture, bloomed gelatine and 1/3 of the whipped cream.
  7. Fold in the rest of the cream without over-mixing and loosing the puffy, airy texture. 
  8. Pour the chocolate mousse into piping bag and set it aside.

Part 2 - Sweet walnut core

  • 100g Preserved walnuts
  • 50g Berry jam



  1. Cut walnuts into small pc.
  2. Mix with the jam.
  3. Mold the mix into small ramekins and freeze solid.

Part 3 - Chocolate glaze

  • 100g 70% Chocolate
  • 100g 40% Cream
  • 20g Coffee butter
  • 20g Liquid glucose



  1. Mix cream & glucose. Bring to boil.
  2. Pour the cream mix over chocolate, let it melt, mix.
  3. Stir in cubed butter for extra shine.

Part 4 - Assembly of the Chocolate Petit Gâteau with preserved walnuts

  1. Take your molds* out.
  2. Pour in chocolate mousse (fill up to about 3/4).
  3. Push in the frozen walnut jam.
  4. Top with a rind of a sponge cake of your choice.
  5. Freeze everything solid.
  6. Take the Petit Gâteau out of the molds. Freeze again.
  7. Pour the chocolate glaze of the frozen cakes.
  8. Decorate the bottom part of the cakes with regular walnuts, and top it with a leaf of edible gold.

*I’m using here SILIKOMART PROFESSIONAL Pine molds. 

Tools, you might need for this recipe

**Images below are linked to third party websites, such as Amazon. Should you chose to purchase any of those items there, Chef Rudakova will receive a small commission (at no extra cost to you).

Microplane Zester
Microplane Zester
Stand Mixer
Food Digital Thermomether
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