01 -
Place dark chocolate and unsalted butter in a metal mixing bowl set over a pan of gently simmering water. Stir frequently until fully melted and glossy, then remove from heat and allow to cool slightly.
02 -
In a separate bowl, whisk together egg yolks, granulated sugar, and 1 tablespoon of water until the mixture is pale and thickened, about 3–5 minutes.
03 -
Gently fold the cooled chocolate mixture into the egg yolk mixture until well incorporated.
04 -
Using a hand whisk or electric mixer, whip the cold heavy cream until medium-stiff peaks form, being careful not to overwhip.
05 -
Gently fold the whipped cream into the chocolate–egg mixture in two additions, ensuring a uniform, airy texture.
06 -
In a small saucepan, combine fresh raspberries and sugar. Cook over medium heat, stirring, until the berries break down and the mixture simmers, about 5–7 minutes.
07 -
Force the cooked raspberry mixture through a fine-mesh sieve into a bowl to remove seeds, yielding a smooth coulis. Allow to cool to room temperature.
08 -
Layer chocolate mousse and raspberry coulis alternately into serving glasses. Begin with chocolate mousse, then add a layer of coulis, repeating for desired visual effect.
09 -
Top each glass with fresh raspberries and chocolate shavings. Serve immediately or chill for up to 1 hour before serving for best texture.