Go Back
+ servings
Overhead shot of Cookie Cake with M&M's.
Print Recipe
4.80 from 15 votes

M&M's Cookie Cake

This M&M's Cookie Cake Recipe is a fun and easy dessert recipe the whole family will enjoy. A giant cookie made with M&M's and chocolate frosting for even more deliciousness!
Prep Time10 mins
Cook Time25 mins
Cooling Time1 hr 30 mins
Total Time35 mins
Course: Dessert
Cuisine: American
Servings: 12 people
Calories: 459kcal



  • Preheat oven to 350° F and line a 9" round cake pan with parchment paper and grease with cooking spray. 
  • In a large bowl using a hand mixer or a stand mixer fitted with a paddle attachment, cream the butter and sugars together until light and fluffy. 
  • Add the eggs, one at a time, mixing well between each addition. Add in the vanilla. 
  • Whisk the flour, baking soda, corn starch, and salt together in a medium bowl and add to the butter mixture and mix on low until just combined. Fold in the M&M's.
  • Transfer and press the cookie dough into an even layer in the prepared cake pan. Top with a few more M&M's, if desired. 
  • Bake until the cookie is golden brown, about 25 minutes. Let the cookie cake cool in the pan completely before running a knife around the edge of the cake and transferring to a cake stand. 
  • Prepare and transfer the frosting to a piping bag fitted with a large star tip. Pipe the frosting around the edge of the cooled cookie cake and top with additional M&M's. Slice into wedges.



  • Store bought chocolate frosting may also be used instead of homemade. 
  • Vanilla frosting may also be used. 
  • Trying doing a mix of M&M's and chocolate chips or add rainbow sprinkles, if desired.


Calories: 459kcal | Carbohydrates: 71g | Protein: 5g | Fat: 17g | Saturated Fat: 10g | Cholesterol: 53mg | Sodium: 324mg | Potassium: 58mg | Fiber: 1g | Sugar: 47g | Vitamin A: 365IU | Vitamin C: 0.2mg | Calcium: 62mg | Iron: 1.9mg