No Bake Frozen Chocolate Mousse Pie is so easy to make and it’s always a fan favorite any time of year. This no bake pie needs about 3-5 hours chill time. Make this frozen chocolate mousse pie early in the day, place in the freezer and you’ll have dessert ready when you are. It’s a make in advance dessert. This recipe was adapted from www.cookingchanneltv.com Bobby Deen’s Lighter Frozen Chocolate Mousse Pie.