Puppy Chow (also known as Puppy Food or Chex Muddy Buddies) is a chocolate snack intended for people. Different versions of the recipe call for different levels of ingredients, but they all produce the same result: peanut butter and chocolate covered cereal coated with powdered sugar.The main ingredient is a cereal such as Chex or Crispix. Any variety of Chex can be used, but rice is the usual used. Crispix are half rice and half corn. The cereal is mixed with melted chocolate, butter (or a butter substitute), and creamy peanut butter. After mixing, the result is coated with powdered sugar, usually added by shaking it together in a paper grocery bag. Once coated, it may be placed in the freezer to cool.