M&M Double Chocolate Cookies. Fudgy, chewy, super soft - the perfect M&M chocolate chip cookies for true chocolate lovers! www.justsotasty.com

M&M Double Chocolate Cookies

Fudgy, chewy, super soft M&M Double Chocolate Cookies! The perfect M&M chocolate chip cookies for true chocolate lovers!
Course Dessert
Prep Time 15 minutes
Cook Time 8 minutes
Total Time 3 hours
Servings 20 cookies
Calories 169kcal
Author Fiona Dowling


  • 1 cup all-purpose flour , spooned & leveled
  • 1/2 cup cocoa powder
  • 2 teaspoons cornstarch
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter , melted & cooled
  • 1/2 cup brown sugar , packed
  • 1/2 cup granulated sugar
  • 2 oz semi-sweet chocolate , melted & cooled
  • 1 large egg , room temperature
  • 1 teaspoon vanilla extract
  • 1/2 cup mini M&Ms
  • 1/3 cup chocolate chips


  • In a medium-sized bowl whisk together the flour, cocoa powder, cornstarch, baking soda & salt.
  • In a separate large-sized bowl using an electric mixer beat together the melted butter, sugars and melted chocolate until evenly combined. Add in the egg and vanilla and continue beating until mixed. 
  • Turn the mixer down to low speed and carefully beat in the flour mixture. Then turn off the mixer and stir in the M&Ms and chocolate chips. Cover the bowl with clingfilm and refrigerate for 2 hours or overnight. 
  • When ready to bake, preheat the oven to 350F degrees and line 2 cookie sheets with parchment paper or silicone baking mats. Allow the cookie dough to warm up for about 15 minutes or a little longer if it was in the fridge overnight.
  • Form the dough into balls about 1.5 tablespoons in size and place 2 inches apart on the cookie sheet. Bake for 8-10 minutes, or until the tops look just set. After cooking, you can place a few extra M&Ms & chocolate chips on the top of each cookie. 


*Cookies store well in an air-tight container at room temperature for about 4 days. 
**Cookie dough balls can be frozen in a ziploc bag for about 2 months. Then the dough balls can be cooked from frozen. They'll need about 1 extra minute baking. 


Calories: 169kcal