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Decadent White Chocolate Mousse Tart

White Chocolate Mousse Tart

This elegant dessert features a buttery tart crust filled with silky white chocolate mousse, perfect for entertaining or special occasions with fresh berries or chocolate drizzle toppings.
Prep Time 25 minutes
Cook Time 18 minutes
Total Time 43 minutes
Course baking, Dessert
Cuisine American
Servings 8 people
Calories 410 kcal

Equipment

  • 1 tart pan
  • 1 mixing bowl
  • 1 whisk
  • 1 oven
  • 1 microwave or double boiler
  • 1 fork

Ingredients
  

  • cups all-purpose flour
  • ½ cup cold butter cubed
  • ¼ cup sugar
  • ¼ teaspoon salt
  • 1 –2 tablespoons cold water
  • 8 oz white chocolate chopped
  • 1 cup cold heavy cream
  • 4 egg yolks
  • ½ cup sugar
  • Optional toppings: fresh berries chocolate drizzle, powdered sugar

Instructions
 

  • Combine flour, sugar, and salt in a bowl.
  • Cut in cold butter until mixture is crumbly.
  • Add cold water gradually and form dough.
  • Press dough into a tart pan and chill for 20 minutes.
  • Preheat oven to 350°F (175°C).
  • Prick the chilled crust with a fork and bake for 15–18 minutes until lightly golden.
  • Allow crust to cool completely.
  • Melt white chocolate gently using a microwave or double boiler; let cool slightly.
  • Whisk egg yolks and sugar until pale and thick.
  • Fold in melted white chocolate gently.
  • Whip heavy cream until soft peaks form.
  • Fold whipped cream into the chocolate mixture until smooth and airy.
  • Pour mousse into the cooled tart crust and smooth the top.
  • Refrigerate tart for 2 to 3 hours until set.
  • Decorate with fresh berries, chocolate drizzle, or powdered sugar before serving.

Notes

  • Use high-quality white chocolate for better flavor.
  • Avoid overheating chocolate to prevent seizing.
  • Chill tart thoroughly for clean, firm slices.