Pour 70 g of white chocolate brittle into a 14-cm-diameter ring mold, and level it with a spatula until the surface is smooth and even. Place an almond dacquoise disc on top of the brittle, and press down firmly with a cookie press.
Next, pour 150 g of raspberry compote over it. Freeze in a blast chiller set to negative temperature mode.
In a stand mixer fitted with a whisk attachment, whip the berry caramel until it reaches a soft consistency, then transfer it to a pastry bag.
Pipe 100 g of berry caramel onto the compote, smooth the surface with a spatula, and freeze.
Line a 16-cm-diameter ring mold with plastic wrap, and spoon 200 g of raspberry mousse into it. Insert the insert upside down (the crunchy layer should be on top of the dessert), pressing down firmly with your hands. Use a spatula to remove any excess and place in a blast chiller set to negative temperature mode. Once frozen, remove from the ring, glaze, and decorate as desired.
Serve at +4°C.
Mold: disposable molds, 16 cm in diameter