This step-by-step recipe for monster cookies is awesome! The best way to describe these is to say they are a mix between a chocolate chip cookie, peanut butter cookie, and oatmeal cookie. If you like those cookies you will love these. All you need are ingredients like flour, oats, salt, baking soda, butter, sugar, brown sugar, egg, vanilla extract, peanut butter, M&Ms, and chocolate chips! If I can do it, you can do it. Let's get baking!