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Rich White Chocolate Mousse Tart

Rich White Chocolate Mousse Tart

A luscious and creamy white chocolate mousse nestled in a crisp, buttery tart shell—perfect for an elegant dessert that melts in your mouth.
Prep Time 25 minutes
Cook Time 18 minutes
Total Time 4 hours 43 minutes
Course Dessert
Cuisine American
Servings 8 servings
Calories 380 kcal

Ingredients
  

  • 1 1/4 cups all-purpose flour
  • 1/4 cup powdered sugar
  • 1/2 cup unsalted butter cold and cubed
  • 1 large egg yolk
  • 1 –2 tablespoons cold water
  • 8 oz white chocolate chopped
  • 1 cup heavy cream
  • 1 teaspoon vanilla extract
  • Pinch of salt
  • White chocolate shavings or curls optional, for garnish
  • Fresh berries or mint leaves optional, for garnish

Instructions
 

  • Preheat the oven to 350°F (175°C).
  • In a mixing bowl, combine the flour and powdered sugar. Add the cold cubed butter and use a pastry cutter or your fingers to blend until the mixture looks like coarse crumbs.
  • Add the egg yolk and 1 tablespoon of cold water. Mix until the dough just comes together, adding more water if necessary. Form the dough into a disk, wrap it in plastic wrap, and chill for 30 minutes.
  • Roll out the dough on a lightly floured surface to fit a 9-inch tart pan. Press the dough into the pan and trim the edges. Prick the base with a fork.
  • Bake the crust for 15-18 minutes or until golden. Remove from the oven and let it cool completely.
  • Melt the white chocolate gently over a double boiler or in short bursts in the microwave, stirring until smooth. Let it cool slightly.
  • Whip the heavy cream with vanilla extract and a pinch of salt until soft peaks form.
  • Gently fold the melted white chocolate into the whipped cream until smooth and combined.
  • Pour the mousse into the cooled tart shell and smooth the top. Refrigerate for at least 4 hours or until set.
  • Before serving, garnish with white chocolate shavings and fresh berries if desired.

Notes

  • Optionally add a splash of orange liqueur or lemon zest to the mousse for a citrus twist.
  • Try crushed toasted nuts in the crust for extra crunch.
  • Swap white chocolate for dark chocolate for a richer flavor.
  • For dairy-free, substitute heavy cream with coconut cream.
  • Store refrigerated up to 3 days; avoid freezing to maintain texture.
  • Gluten-free crust can be made by substituting all-purpose flour with a gluten-free baking blend.
  • Ensure white chocolate is melted gently and cooled slightly to prevent graininess.
  • The tart tastes better after sitting overnight in the fridge.
  • Store-bought tart shells can be used to save time.

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Keyword Vegetarian