One of my dear former roommates is from France, and has greatly added to my enjoyment of foods over the years. I believe she and I single-handedly fueled the entire market for imported European salamis in Utah at one point. One of the best things she makes is a mousse au chocolat, and so I asked her for the recipe so I could make it for a recent Young Women's activity.
Turns out she adapted the recipe from this one she'd found at marmiton.org, which is a lot of fun and a lot of trouble if you're ever tempted to brush up on your French and/or stuff amazing things into your pie hole.