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Chocolate Mousse

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dessertsfrenchvegetarian, gluten-free, contains eggs, contains dairy
2 hours 30 minutes6 servings

Ingredients

  • 8 ounces dark chocolate (60–70% cacao)finely chopped
  • 3 tablespoons unsalted buttercut into small pieces
  • 1 tablespoon strong brewed espressocooled
  • 4 large large eggsseparated
  • 1/4 cup granulated sugar
  • 1/8 teaspoon fine sea salt
chocolate mousse

Instructions

1. Set a heatproof bowl over a saucepan of barely simmering water (the bowl should not touch the water). Add the dark chocolate (60–70% cacao), unsalted butter, and strong brewed espresso, and stir gently until just melted and smooth. Remove from the heat and let cool until warm to the touch, 5–10 minutes.

2. Separate 4 large eggs. Place the yolks in a large mixing bowl and whisk briefly to break them up. Whisk the lukewarm chocolate mixture into the yolks until glossy and fully combined.

3. In a clean bowl, add the egg whites and the fine sea salt. Beat to soft peaks, then gradually sprinkle in the granulated sugar and continue beating until the meringue is glossy with medium-firm peaks.

4. Fold one-third of the meringue into the chocolate base to lighten it. Gently fold in the remaining meringue in two additions until no white streaks remain and the mixture is airy.

5. Spoon the mousse into 6 small cups or ramekins. Cover and chill until set, at least 2 hours and up to 24 hours.

6. Serve well chilled.

Chocolate mousse, or mousse au chocolat, is a classic French dessert known for its light, airy texture and deep chocolate flavor. Traditionally, its structure comes from whipped egg whites carefully folded into a rich chocolate base, avoiding stabilizers like gelatin. The result is a dessert that’s simultaneously delicate and intense, often served in small cups to highlight its richness.

The dish popularized in French homes and bistros through the 20th century remains a benchmark of restrained technique: gentle melting, careful whipping, and confident folding. Most traditional versions rely on good dark chocolate in the 60–70% range, a touch of butter for silkiness, and raw eggs for lift and sheen. It’s typically served plain or with minimal adornment so the chocolate can shine.