4 Varieties of European Chocolate Mousse. 20 individually wrapped pieces. Chocolate Hazelnut Mousse: Smooth milk chocolate filled with a delicate hazelnut mousse. White Chocolate Mousse: Creamy white chocolate filled with a hint of divine white chocolate mousse. Milk Chocolate Mousse: Fine milk chocolate filled with a delicious light-tasting cocoa mousse. Dark Chocolate Mousse: A rich dark chocolate filled with a fluffy dark chocolate mousse. Storck. Part of your world.