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Elegant No-Bake White Chocolate Mousse Tart with Fresh Raspberry Topping

A close-up slice of white chocolate mousse tart with a graham cracker crust, topped generously with fresh red raspberries.

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Create a showstopping, elegant dessert with this no-bake white chocolate mousse tart. It features a crisp, buttery graham cracker crust and a velvety, light white chocolate filling, topped with fresh raspberries for a perfect party centerpiece.

Ingredients

Scale
  • 1 1/2 cups graham cracker crumbs
  • 1/4 cup granulated sugar (for crust)
  • 6 tablespoons unsalted butter, melted
  • 12 ounces high-quality white chocolate, finely chopped
  • 1/4 cup whole milk
  • 1 teaspoon vanilla extract
  • 1 1/2 cups heavy cream, cold (for mousse)
  • 1/4 cup powdered sugar (for mousse)
  • 1 cup fresh raspberries, for topping
  • Optional: White chocolate curls or shaved chocolate for garnish

Instructions

  1. Prepare the Crust: In a medium bowl, combine the graham cracker crumbs, 1/4 cup granulated sugar, and melted butter. Mix until the crumbs are evenly moistened.
  2. Press the crumb mixture firmly and evenly into the bottom and up the sides of a 9-inch tart pan with a removable bottom. Place the crust in the freezer to chill for at least 20 minutes while you prepare the filling.
  3. Prepare the White Chocolate Base: Place the chopped white chocolate in a heatproof bowl. In a small saucepan, heat the milk until it just begins to simmer. Pour the hot milk over the white chocolate and let it sit undisturbed for 3 minutes.
  4. Whisk the chocolate and milk mixture until completely smooth. Stir in the vanilla extract. Set aside to cool to room temperature, about 15 to 20 minutes. The mixture must not be warm when added to the whipped cream.
  5. Make the Mousse: In a large, chilled bowl, beat the 1 1/2 cups of cold heavy cream and 1/4 cup powdered sugar with an electric mixer until stiff peaks form.
  6. Gently fold about one-third of the whipped cream into the cooled white chocolate mixture to lighten it.
  7. Carefully fold the remaining whipped cream into the white chocolate mixture in two additions until just combined and no white streaks remain. Do not overmix.
  8. Assemble the Tart: Pour the white chocolate mousse filling into the chilled graham cracker crust. Smooth the top with an offset spatula.
  9. Chill the tart in the refrigerator for a minimum of 6 hours, or preferably overnight, until the mousse is firm.
  10. Serve: Carefully remove the tart from the pan. Arrange fresh raspberries over the top just before serving. Garnish with white chocolate curls if desired.

Notes

  • Use high-quality white chocolate that contains cocoa butter for the best flavor and texture in the mousse.
  • For individual servings, use this recipe to fill 6-ounce tartlet shells instead of a full 9-inch tart pan.
  • This dessert is excellent for make-ahead preparation; it holds well in the refrigerator for up to two days.

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