Ingredients:

  • 1/2 cup (113g) unsalted butter, melted
  • 1 cup (200g) granulated sugar
  • 1/2 cup (60g) unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1 teaspoon vanilla extract
  • 1 large egg
  • 1/2 cup (60g) all-purpose flour
  • 8 ounces (227g) high-quality dark chocolate (70% cacao or higher), finely chopped
  • 1 1/2 cups (355ml) heavy cream, divided
  • 2 large egg yolks
  • 2 tablespoons granulated sugar
  • 8 ounces (227g) high-quality white chocolate, finely chopped
  • 1 1/2 cups (355ml) heavy cream, divided
  • 2 large egg yolks
  • 2 tablespoons granulated sugar
  • 2 ounces (57g) dark chocolate, for shaving or curls

Instructions:

  1. Preheat oven to 350°F (175°C). Line baking pan with parchment.
  2. Combine melted butter, sugar, cocoa powder, salt, and vanilla. Mix well.
  3. Add egg and mix until combined.
  4. Stir in flour until just combined.
  5. Spread batter into the prepared pan.
  6. Bake until a toothpick inserted comes out with moist crumbs.
  7. Let cool completely, then crumble.
  8. Melt dark chocolate using a double boiler method. Set aside to cool slightly.
  9. In a small saucepan, scald 1/2 cup heavy cream.
  10. Whisk egg yolks and sugar until pale and thickened.
  11. Slowly pour hot cream into the egg yolk mixture, whisking constantly.
  12. Return mixture to the saucepan and cook over low heat, stirring constantly, until it thickens slightly.
  13. Remove from heat and stir in melted chocolate until smooth.
  14. Whip remaining 1 cup heavy cream to stiff peaks.
  15. Gently fold whipped cream into the chocolate mixture.
  16. Chill for at least 1 hour.
  17. Repeat the same steps as the dark chocolate mousse, substituting white chocolate.
  18. Chill for at least 1 hour.
  19. In trifle bowls or a large dish, layer brownie crumble, dark chocolate mousse, and white chocolate mousse.
  20. Repeat layers as desired.
  21. Chill for at least 30 minutes before serving.
  22. Shave dark chocolate over the top of the trifle.
  23. Serve immediately.