I love baking, but especially I like making mousse desserts. Mousse, for me, is the ultimate fancy-pants dessert. Since the dish has so few ingredients, basic tweaks can yield dozens of different flavor combinations. The sky’s the limit for creating your own custom mousse recipe. Mousse is made up of just a few ingredients: the base, the aerator(s), the sweetener (which is usually added to the aerator), and the thickener (which is optional, depending on the recipe).