M&M Cookies are so colorful and fun. They’re perfect for birthday parties, giving as gifts, or just making for the heck of it. These particular M&M cookies are soft and chewy. They can stand on their own, but are perfect for dunking in a tall glass of milk or hugging either side of a big scoop of vanilla ice cream. The best part of these cookies is that they can be done in one bowl and mixed by hand.