I can never have enough chocolate cake recipes. Can you? So here's a Swan's Down 1952 Retro Ad & Recipe for Moonlight Chocolate Cake. This is a rich Chocolate Cake with a Lemon Cream Cheese Frosting. The cake recipe called for 3 squares of Baker's unsweetened chocolate, but I use a good quality dark chocolate and cut down on the sugar. Either way, you'll love this cake!