Monster Cookie Bars ~ loaded with chewy oats, decadent peanut butter, colorful M&Ms, chocolate chips, and peanut butter chips, this effortless batter whips up in no time! It's then spread in a large rimmed sheet pan for a BIG batch of bar cookies, perfect for sharing or serving at parties. Even better, you can customize these yummy cookies for various holidays by using seasonal M&Ms! | FiveHeartHome.com
