Directions
- Prepare the chocolate: Chop the dark chocolate into small pieces and melt it gently using a double boiler or in short bursts in the microwave. Stir until smooth and set aside to cool slightly.
- Whip the butter: In a large bowl, beat the softened butter until fluffy and creamy. Gradually add the melted chocolate and mix until fully combined. Add the vanilla extract.
- Separate eggs: Carefully separate the egg yolks from the whites. Add the yolks one at a time to the chocolate-butter mixture, blending well after each addition.
- Whip the egg whites: In a clean, dry bowl, whisk the egg whites with a pinch of salt until soft peaks form. Gradually add sugar and continue whipping until glossy stiff peaks form.
- Fold egg whites into chocolate: Gently fold one-third of the whipped egg whites into the chocolate mixture to lighten it. Then fold in the remaining egg whites carefully, preserving as much air as possible for a light, airy texture.
- Chill the marquise: Transfer the mixture to a lined loaf pan or individual serving molds. Smooth the top with a spatula. Cover with plastic wrap and refrigerate for at least 4 hours, preferably overnight, to set fully.
- Serve: Remove from the pan or molds and slice with a warm knife for clean edges. Serve with whipped cream, a dusting of cocoa, or fresh berries for a refined presentation.
Recipe Details
- Prep Time: 20 minutes
- Chill Time: 4 hours to overnight
- Total Time: 4 hours 20 minutes
- Servings: 6–8
- Difficulty: Medium
Variations & Substitutions
- Liqueur flavor: Add 1–2 tbsp of coffee liqueur, Grand Marnier, or rum to the chocolate mixture for a sophisticated twist.
- Milk chocolate version: Substitute dark chocolate with milk chocolate for a sweeter, less intense flavor.
- Nutty addition: Fold in finely chopped toasted hazelnuts or almonds for added texture.
- Vegan alternative: Use coconut cream instead of butter and an egg replacer for a dairy-free version.
Serving Suggestions
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