M&M Cookie Cake

Whether you have a reason to celebrate or not, this soft and chewy M&M COOKIE CAKE is the perfect dessert to enjoy with friends and family. A sugar cookie dough filled with M&M’s and some chocolate buttercream frosting on top! YUM!

M&M Cookie Cake

Cookie Cake

Have you had a Cookie Cake before? They are the best! You don’t have to cook multiple batches of cookies, they’re great for a party, and it has frosting! How could you not want a slice of this M&M Cookie Cake?!

Back in the 90’s when I was still in elementary school, the coolest treat to bring to share with your class for your birthday was Chocolate Chip Cookie Cake. Some people even brought double layer cookie cake! Well, I thought it’d be fun to make an M&M variation.Cookie Cake

M&M Cake

M&M Cake

Who doesn’t love M&M’s with their colorful crunchy shell and milk chocolate center?! They’re dangerous little devils! They’re so small so you keep telling yourself “just one more” until you find yourself a the bottom of the bag and a tummy full of chocolate (Worth it!)

The batter for this is more like a sugar cookie since it doesn’t have brown sugar and tastes like the beloved M&M cookies you’d get from the Mrs. Field’s stand in the mall.

How to make Cookie Cake

Once you whip up your dough you just press it evenly into a greased pie dish and pop it in the oven. Let it cook completely and then run your knife along the edge and the whole thing will pop out to place on a platter. You can also just leave it in the pie plate.

The frosting is a simple chocolate buttercream. I used half dark cocoa powder and half regular. It was super yummy but you can just use whatever cocoa powder you have on hand. After you pipe on the rich chocolate frosting, top it with more M&M’s and feel free to throw on some sprinkles for good measure. Now you’re ready to slice and party!

Cookie Cake recipe

You can’t go wrong with this M&M Cookie Cake. Kid’s go crazy over it!

For more cookie creations, check out:

How to make a Cookie Cake:


5 from 6 votes

This M&M COOKIE CAKE has a sugar cookie dough filled with M&M's and some chocolate buttercream frosting on top and is the perfect dessert to enjoy with friends and family.

Course Dessert
Cuisine American
Prep Time 5 minutes
Cook Time 23 minutes
Total Time 28 minutes
Servings 8
Calories 556 kcal
Author Garnish & Glaze



  • 1/2 cup salted butter
  • 3/4 cup granulated sugar
  • 1 large egg
  • 1 egg yolk
  • 1 1/2 cup all-purpose flour
  • 1 tbsp cornstarch
  • 1 tsp baking powder
  • 1/2 tsp baking soda
  • 1/4 tsp salt
  • 3/4 cup m&m's
  • 1/4 cup mini m&m's


  • 4 tbsp butter
  • 3 1/2 tbsp cocoa powder
  • 1 1/2 cups powdered sugar
  • 1/2 tsp vanilla
  • 1-2 tbsp milk
  • M&M's
  • sprinkles



  1. Preheat oven to 350 degrees F and grease a 9 inch pie dish.

  2. Beat butter for 2 minutes until smooth. Mix in sugar until fluffy. Add in the egg, yolk, and vanilla until smooth, creamy, and light in color.

  3. Add the flour, cornstarch, baking powder, baking soda, and salt and mix until combined.

  4. Mix in the m&m's by hand (they're break if you use the mixer) until evenly distributed.

  5. Spread dough in the greased pie dish. Bake for 23-26 minutes. Cool completely before removing from pie dish and frosting.


  1. Beat butter and cocoa powder together. Mix in the powdered sugar and vanilla. Add the milk as needed to get desired consistency.

  2. Place frosting in a piping bag with an M1 tip and decorate the cookie cake. Immediately add the M&M's and sprinkles.

Also be sure to check out this Peanut Butter Cookie Cake:


I’m craving some M&M cookies after reading this! 😉 Cookie cakes for the win! Thanks for sharing this recipe with us Melanie!! For more delicious recipes by her, visit her site Garnish and Glaze!

For all Dessert recipes, CLICK HERE.

For all Cake recipes, CLICK HERE.


Melanie Dueck

Melanie is the cook and photographer behind the blog Garnish & Glaze. When she’s not playing princesses with her two little girls, she’s experimenting in the kitchen. She takes simple ingredients and creates everything from healthy dinners to indulgent desserts.

More by Melanie

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Recipe Rating


  1. Hi! I like the looks of this cookie cake, and it must surely taste amazing, but I have some questions:
    -Will this cake get hard if I let it cool?
    -What happens if I put it in the fridge?
    I would love to make this one (more than one, actually) for my son’s birthday and that means I need to make it a couple of hours earlier.

    1. If it just left out, not wrapped or anything, it might get a little hard. It will for sure get harder in the fridge, so if aren’t wanting it cold, get it out a little beforehand or you can store in an air-tight container. Hope this helps!

  2. The vanilla amount is left off of the cookie recipe. It’s in the frosting instructions but not the cake. Can you correct please?

  3. 5 stars
    An m&m cookie, as cake? That’s the best thing ever! I love the frosting on top. It’s so chocolate-y & yummy!

  4. 5 stars
    My kids love this!! I mean who wouldn’t love a big, M&M cookie cake with frosting? It’s a favorite of everyone!

  5. 5 stars
    Most of my kids don’t like regular cake. This would be a fun alternative for a birthday. Delicious and still cake like.