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Julia Child’s Chocolate Mousse

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This classic chocolate mousse captures the essence of French cuisine with rich chocolate and an airy texture, making it a delightful treat for any occasion.

Ingredients

Scale
  • 4 Large Eggs, Separated
  • 150 grams Caster Sugar
  • 3 Tablespoons Orange Liqueur
  • 170 grams High-Quality Bittersweet Chocolate (70% – 74% Cocoa), Chopped
  • 1 ½ teaspoons Espresso Powder
  • 60 ml Hot Water
  • 170 grams Unsalted Butter, Cut into ½-inch Cubes and Softened
  • 1 teaspoon Diamond-Crystal Kosher Salt
  • 12 grams Granulated Sugar
  • 238 grams Heavy Cream
  • 1 teaspoon Vanilla Paste (optional)

Instructions

  1. Prepare a double boiler with two heatproof bowls over lightly simmering water.
  2. Whisk egg yolks and caster sugar in one bowl until foamy and heat for 3–8 minutes, whisking constantly until thickened.
  3. Cool the mixture quickly in a bowl of ice water and stir until at room temperature.
  4. Melt chopped chocolate and espresso powder with hot water in another bowl over simmering water until smooth.
  5. Mix melted chocolate into cooled egg yolk mixture until well combined.
  6. In a clean bowl, beat egg whites and kosher salt until soft peaks form, then gradually add granulated sugar until stiff peaks form.
  7. Fold a quarter of the egg whites into the chocolate mixture, then gently fold in the remaining egg whites.
  8. Transfer mousse to serving dishes, cover with plastic wrap, and chill for at least 4 hours or overnight.
  9. Before serving, whip heavy cream and vanilla paste until stiff peaks form and top mousse with whipped cream.

Notes

Use high-quality chocolate for the best flavor. Be gentle when folding in the egg whites to keep the mousse light and airy. Chill for at least four hours to ensure it sets properly.

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