Chocolate Mousse
Chocolate mousse is the ultimate dessert for any chocolate lover. We like to make ours using bittersweet chocolate, which is high in pure chocolate (at least 35 percent cocoa solids) and makes for a deep chocolate flavor. (Plus, it's also a great eating chocolate.) If you prefer semisweet chocolate, which has more sugar and fewer cocoa solids than bittersweet, know that it can often be substituted in recipes without significantly affecting the flavor or texture.
Everyday Food, December 2003