Monster Cookies

Ingredients (10)

• 1 1/2 cups creamy peanut butter
• 1 cup packed brown sugar
• 1 cup white sugar
• 1 stick unsalted butter
• 3 large eggs
• 1 Tablespoon vanilla extract
• 4 1/2 cups old fashioned rolled oats
• 2 teaspoons baking soda
• 1 cup semi sweet chocolate chips
• 1 cup M & Ms, plus more for the top of the cookies