Puppy Chow is the midwest name for this delicious treat because people think it looks like dog food. If you've never had puppy chow, don't let this deter you. And don't be fooled by the name - this delicious snack is for humans! If you have heard it called Muddy Buddies, that is the official name that Chex came up with to promote this amazing snack that usually features Rice Chex cereal.