Reese's Peanut Butter Puffs Cereal 16.7 oz Box. Hershey's Cocoa & Reese's Peanut Butter sweet and crunchy corn puffs. This cereal contains 11g whole grain per serving. At least 48 grams recommended daily. A whole grain food is made by using all three parts of the grain. All General Mills Big G cereals contain more whole grain than any other single ingredient. This cereal contains 11g whole grain per serving. At least 48 grams recommended daily. A whole grain food is made by using all three parts of the grain. All General Mills Big G cereals contain more whole grain than any other single ingredient.