Gooey Dark Chocolate Mug Cake ~ 1 egg, 1/3 cup powdered sugar, 2 Tbs extra dark cocoa powder, 1/4 cup extra creamy whipped topping, mixed with 1/4 teaspoon vanilla, chocolate sprinkles 1. Crack egg into the mug, add powdered sugar & cocoa powder.Whisk together. 2. Microwave about 60 seconds. 3. Top with extra-creamy whipped cream & chocolate sprinkles.