50 Do-It-Yourself Hot Chocolate Bomb Recipes for Kids and Adults Hot cocoa bombs are chocolate truffles filled with hot cocoa mix and other goodies--mini marshmallows, crushed peppermint candies, salted caramel sauce--that melt into a warm mug of milk and create a fabulous cup of hot cocoa. The bombs themselves can be beautiful, cute, festive, or imaginative, and the flavor combinations are just as diverse. Recipes included in this...