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White-Chocolate Mousse for Chocolate Roulade

This is the mousse recipe that goes inside our Chocolate Roulade with White-Chocolate Mousse and Fudge Frosting.

  • Yield: Makes about 4 cups

Photography: Dana Gallagher

Source: Martha Stewart Weddings, Winter 2004


  • 1 1/2 teaspoons unflavored gelatin
  • 12 ounces best-quality white chocolate, coarsely chopped
  • 2 cups heavy cream


  1. Dissolve gelatin in 1/4 cup cold water in a small bowl. Let stand 5 minutes.
  2. Pulse white chocolate in a food processor until finely chopped. Bring 3/4 cup cream just to a boil in a small saucepan over medium-high heat. Add gelatin mixture; stir to dissolve, about 30 seconds.
  3. With machine running, add cream mixture to white chocolate; process until smooth. Transfer mixture to a medium bowl, cover with plastic wrap; chill until thick enough to hold a ribbon on surface when drizzled, about 20 minutes.
  4. Beat remaining 1 1/4 cups cream until stiff peaks form. Fold into white-chocolate mixture. Chill until almost firm and set, 25 to 30 minutes. Whisk mousse until smooth, and use immediately.

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