These soft and chewy monster cookie bars are a delicious mix of creamy peanut butter, oats, chocolate chips and M&M’s in an easy-to-make bar cookie form. The perfect sweet treat for any occasion!

Theses Monster Cookie Bars are loaded with peanut butter, oats, chocolate chips, and M&M's. The ultimate sweet treat to make anytime! Soft, chewy, and a one-bowl recipe! Are you a cookie fan?

Dump the mixture into the dish and press down. Lay another piece of parchment or wax paper on top and use your hands or the ...