M&M Chocolate Chip Cookies

Few things say Christmas better than green and red M&Ms! Throw some into these perfectly chewy M&M chocolate chip cookies, and you have festive Christmas cookies that everyone loves!

• 2 1/2 Cups Flour
• 2 teaspoons Cornstarch
• 1 teaspoon Baking Soda
• 1/2 teaspoon Salt
• 14 Tablespoons Unsalted Butter, softened * see note
• 1 Cup Light Brown Sugar
• 1/2 Cup White Sugar
• 1 Large Egg
• 3 teaspoons Vanilla Extract
• 1 1/4 Cup Semi Sweet Chocolate Chips, plus more for topping
• 1 Cup Christmas M&Ms, plus more for topping