The calculation is for 3 rings 20 cm in diameter.
- Sift the powdered sugar with flour. Whip the whites with salt. Add the lemon acid powder, then add sugar. Whisk until stiff peaks. Add the powdered sugar combined with flour and mix gently. Pour in rings, sprinkle with apple pieces and walnut crumbs. Bake at 160C (320F) for 20 minutes.
- Bring sugar and water to a boil until the sugar dissolves, add lemon juice.
- Mix all ingredients and put on the stove. Bring to a boil, pour into a mold and freeze.
- Whip the Camembert well with a blender. Mix with the cream cheese and the powdered sugar. Whisk the dairy cream, then add the remaining mixture and whip.
Soak each sponge cake layer with a syrup. Then assemble from bottom to top according to the following order: sponge cake layer, cream, compote, cream, sponge cake layer, cream, compote, cream, sponge cake layer, cream.