Unmold the raspberry confit insert.
In the clean Savarin mold, pour a layer of pistachio mousse.
Gently place the frozen confit insert into the center, pressing lightly.
Add more mousse and finish by placing the pistachio dacquoise (crunch-side down) on top.
Make sure the center has been cut out to match the mold.
Smooth the top and freeze at least 6 hours.
Optional: pour excess mousse into small silicone half-sphere molds (3 cm diameter), freeze, then join pairs to form decorative spheres.