Chocolate Mousse Pie

San Francisco isn’t known for ideal beach weather, but that didn’t stop our family from spending time at the ocean. We’d head out to Baker Beach and my brother and I would spend a few hours running through the fog in our bathing suits. One of our favorite things to do on a beach day was make mud pies—those easy-to-make pies of water and sand that would bake up into an imaginary, delicious treat. This recipe is exactly what we were pretending to make but so much more delectable. It’s also an