Chocolate Marshmallow Brownie Cookies

There is a little restaurant close to our house called Cutler’s that makes the most amazing sandwiches and cookies! Their cookies are seriously to die for!
Well, I was craving some of their cookies, but my kids were taking a nap and I couldn’t leave the house, so I came up with my own recipe . . .

Serves: 48

Chocolate Marshmallow Brownie Cookies

A delicious soft and fudgy cookie. So easy to make with a cake mix.

10 minPrep Time

9 minCook Time

19 minTotal Time

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  • 15.25 ounces milk chocolate cake mix
  • 2 eggs
  • 1/3 cup vegetable oil
  • 10 ounces miniature marshmallows
  • Frosting:
  • 1 stick (1/2 cup) margarine, softened
  • 2-3 tablespoons milk
  • 1 tsp vanilla
  • 2 tablespoons cocoa
  • 3 cups of powdered sugar


  1. Cookies:
  2. Mix all ingredients together. Roll into 1-1.5? balls. Place on cookie sheet and bake at 350 degrees for 5-6 minutes.
  3. Pull the cookie sheet out of the oven and place 6-7 mini marshmallows on each cookie. Put the cookie sheet back into the oven for 2-2.5 minutes (no longer!)
  4. The marshmallows will puff up as shown in the picture.
  5. Let the cookies cool on the cookie sheet for a couple of minutes, then remove to wire rack to cool.
  6. Once they are cooled completely, put frosting on top.
  7. Frosting:
  8. Combine all ingredients with hand mixer. If too thick add a little more milk. If not thick enough, add a little more powdered sugar. Frost tops of cooled cookies.

 The marshmallows will kind of puff up like this.

Equipment needed for this recipe:

Here are more cake mix cookies!
Fudgy Chocolate Cake Mix Cookies
Cake Mix Sugar Cookies
Fresh Strawberry Cream Filled Cookies
Homemade Oreo Cookies
Mint Chip Chocolate Cookies

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24 Responses to “Chocolate Marshmallow Brownie Cookies”

  1. My friend just made these for a cookie exchange I hosted before Christmas. She shared her source with me from Pinterest, which then linked back to your post here. The Marshmallow Chocolate Marshmallow Brownie Cookies were voted the best cookies of the night!! I shared the recipe on my blog and made sure to link to give credit to you for the creation of this great recipe!! Love your blog! ---BA from
  2. I love trying new recipes! I too thought these looked wonderful and thought they would be great to make for my work cookie exchange. They sounded really easy to make and since I was going to have to make almost a 100 cookies, I thought these would be perfect. However, after the first batch I quickly changed my mind. One of most frustrating thing was "rolling" them into balls. The cake mix/eggs/veg oil created a very sticky taffy like mixture. Trying to "roll" them into balls was absolutely impossible! You can't even get the batter off your fingers. Cooking the cookies for only 5-6 minutes was no way close to long enough time before putting the marshmallows on, they were still very doughy. The marshmallow piece wasn't that big of a deal, but I found myself having to smash the cookies down inorder to get them to stay on top. Also, the frosting was terrible. I tried making the frosting a few different ways by decreasing/increasing vanilla and even powder sugar. I would have been better off using store bought frosting. Of all the recipes I've ever tried, I have never before written a comment, but I was so disappointed and frustrated with my experience that I felt I needed to share. If you're going to make these yourself, be prepared to spend more total time to create them and if you have a favorite frosting recipe I would recommend using it instead.
    • I had the same problem with the batter - I'm curious if it's the brand of cake mix. But I simply scooped the batter out with a spoon, and then scraped it off onto the baking sheet with another spoon - and that worked just fine. I'm going to try these again with a different brand and see if that makes any difference.
  3. These are my familes favorite cookies! We have a similar cookie shop called The Cookie Connection, they make a similar version of these and they are delicious! I found your recipe and was thrilled to be able to make this yummy cookie at home. I followed your recipe exactly and they turned out perfect! I never had any problems rolling the dough into balls, the marshmallows can be tricky but that is not a big deal. And this icing is one I have used for years as a basic frosting. This is such a simple recipe, I really don't see how anyone can have problems with it.

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