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This copycat Crumbl cookie is just like the original! This huge cookie is a mashup up of graham cracker flavored cookie and brownie topped with marshmallow fluff. S’mores Brownie Cookies are 3 of your favorite desserts in one!

smores brownie cookies on a black cookie cooling rack with large marshmallows in the frame

Crumbl Copycat: S’mores Brownie Cookies

Brownies and cookies are my 2 all time favorite treats! So when a follower messaged me on Instagram and requested I make this Crumbl Copycat recipe, I couldn’t resist. 

Half decadent, chocolatey brownie, half graham cracker flavored cookie, topped with marshmallow and overflowing with S’more’s flavor. These cookies they will have you singing Kumbaya in no time!

Best news yet- you don’t have to make two separate cookie doughs for this one cookie! That’s right, we will make one dough, separate at the last minute and add in a few last items to make two completely different cookie doughs. 

cookie broken in half, stacked on top of each other with chocolate and marshmallow oozing.

Ingredients in  Crumbl S’mores Brownie Cookies

  • Butter- You can use salted or unsalted. I always use salted because that is what I have on hand. 
  • Granulated sugar
  • Brown Sugar- Using both types of sugar will give you cookies the best texture, and the brown sugar helps keep the cookies nice and soft. 
  • Eggs
  • Vanilla
  • Flour- The flour in the recipe is divided. Make sure to not add it all to the dough initially. 
  • Baking Soda
  • Baking Powder
  • Salt- Using salt in desserts helps bring out the sweetness, desserts fall a little flat with out it!
  • Crushed Graham Crackers- About 1 1/2 cups worth (exactly one package crushed!), plus a little extra for garnish
  • Cocoa Powder
  • Chocolate Chips- You will need sweet and semi-sweet chocolate chips in this recipe. 
  • Marshmallow Cream

smores brownie cookies before being baked, on the cookie sheet

How To Make S’mores Brownie Cookies

Start by preheating the oven to 350 degrees.

In a stand mixer cream together the butter and sugars until light and fluffy. Add the eggs and vanilla and mix until combined. 

Add 3 1/2 cups flour, baking soda, baking sugar and salt and mix until just combined. Be careful not to overmix once you have added the flour or your cookies will become tough and cakey. 

Take half your dough and place it in a separate bowl.

adding graham cracker crumbs to half of the base cookie dough

Add the graham cracker crumbs and chocolate chips to the stand mixer and mix again. Once your cookie dough is combined, remove it from the stand mixer.

Return the remaining dough to the stand mixer and add the cocoa powder, and the remaining flour and stir to combine. 

cocoa powder being added to the other half of the cookie dough in the stand mixer.

Divide the brownie cookie dough into 12 equal parts. This makes huge cookies, if you want smaller cookies you can do that too, but you will need to adjust the bake time. 

Roll each chocolate portion into a ball and place on a cookie sheet, (6 per pan, the dough will spread a little bit) and flatten with the palm of your hand. 

Now divide your graham cracker cookie dough into 12 equal parts. Roll them into a ball, flatten the dough with your palm and place on top of your brownie cookie. 

Bake at 350 for 12-15 minutes being careful not to overbake. You will know they are done when there is no longer a wet spot on the top of the cookie. 

marshmallow cream being added to the top of the smores brownie cookies

Allow the cookies to cook on the cookie sheet for 10 to 15 minutes before spooning the marshmallow cream on the center of the cookie and garnishing with graham cracker crumble.  (also, hi there Mr. Twix bar!))

Serve warm. 

How to store Leftover Crumbl Cookies

Store any leftover cookies in an air tight container- I usually put them in a deep 9×13 pan and then cover tightly with plastic wrap. This will keep them fresh at room temperature for 3 or so days. If you’d like them warm again, just pop them in the microwave for a few seconds. 

pin image for Crumbl's smores brownie cookie

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5 from 19 votes

Crumbl S'mores Brownie Cookies

S'mores Brownie Cookies are a giant Brownie and Graham Cracker Chocolate Chip cookie base topped with marshmallow fluff. This Crumbl Copycat recipe is a winner!
Prep Time: 20 minutes
Cook Time: 15 minutes
Servings: 12 cookies

Ingredients 

  • 1 1/2 cups butter, softened
  • 3/4 cup granulated sugar
  • 1 1/2 cups brown sugar
  • 2 eggs
  • 1 tbsp vanilla
  • 3 3/4 cup flour, divided
  • 2 tsp baking soda
  • 1 tsp baking powder
  • 1 tsp salt
  • 1 pkg graham crackers , crushed (about 1 1/2 cups worth)
  • 1/2 cup cocoa powder
  • 1/2 cup milk chocoalte chips
  • 1/2 cup semi sweet chocolate chips
  • 7 oz container marshmallow creme
  • graham cracker crumbs, for garnish

Instructions 

  • Preheat oven to 350°.
  • In the bowl of a stand mixer, cream together the butter and sugars until combined.
  • Add in the eggs and vanilla. Mix thoroughly.Add the 3 1/2 cups of flour, baking soda, baking powder and salt. Mix until well combined.
  • Remove half of the dough and place in a separate bowl.
  • Add the graham cracker crumbs to the stand mixer bowl and mix until combined.
  • Mix in the chocolate chips.
  • Remove the graham cracker cookie dough from the stand mixer and place in a bowl.
  • Place the remaining cookie dough into the stand mixer and add in the remaining 1/4 cup of flour and cocoa powder, mixing until well combined.
  • Gather the chocolate cookie dough and separate into 12 equal portions.
  • Roll each portion into a ball and then flatten it with the palm of your hand and arrange on a cookie sheet (bake 6 cookies per sheet) Repeat with remaining chocolate cookie dough.
  • Gather the graham cracker cookie dough and separate into 12 equal portions. Roll each portion into a ball and then flatten it with the palm of your hand before pressing it gently on top of a brownie cookie dough. Repeat with remaining dough.
  • Bake at 350° for 12-15 minutes.
  • Allow the cookies to cool for 10-15 minutes before spooning and spreading marshmallow creme on to the center of each cookie.
  • Top with extra graham cracker crumbs, if desired. Serve warm.

Video

Nutrition

Calories: 797kcal | Carbohydrates: 121g | Protein: 9g | Fat: 33g | Saturated Fat: 18g | Trans Fat: 1g | Cholesterol: 90mg | Sodium: 829mg | Potassium: 288mg | Fiber: 4g | Sugar: 65g | Vitamin A: 769IU | Vitamin C: 1mg | Calcium: 99mg | Iron: 5mg
Like this recipe? Rate and comment below!

 

About Karli Bitner

This blog is a little glimpse into my kitchen, family & life. I hope you’ll giggle the days away with me and enjoy the craziness that goes on at my house. If you are Cookie obsessed like I am, check out my Sister Site, Cookies for Days.

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20 Comments

  1. They actually plop a real marshmallow on top at Crumbl. They put the baked cookies back in with the marshmallow I’m sure on broil very quickly. I saw them do it yesterday ;). I’ll probably use this recipe soon because it’s my new favorite dessert!

  2. 5 stars
    Great recipe and so much fun to make with my 10 year old. I opted for cutting a large marshmallow in half and placing on in the middle of the cookie after they were done baking and then placed them under the broiler for 1 minute and they came out perfect with nice browning over the marshmallow like you get when you roast s’mores.

  3. Hey Mandy! Yeah, they changed their recipe since made this copycat recipe a year or so ago. Feel free to broil a real marshmallow on top!

  4. 5 stars
    Sooooo good! I too thought I had portioned out evenly and was wishing you had given a measurement for the next time I make them. I ended up with too much graham cracker cookie dough so I made an even number of 1.5 inch (ish) cookies and will make sandwich cookies out of them by putting marshmallow cream in between. I made slightly smaller cookies than you did and it still yielded 18 very oversize cookies, which was perfect for what I what I wanted and needed. I baked for 10 minutes (still leaving on sheet for 10) and they came out perfect. The only negative with these is storing them and transporting them 😂 You can’t stack them and I have to take them in several containers, but it is all good because they are delicious. 😀 Plan to try marshmallows on top next time.

  5. I came back to print the recipe to make these again, and realized that I never left a review last time. This were a big hit! I used a marshmallow buttercream instead of the fluff on top. I didn’t portion out the two doughs exactly evenly, so I ended up with the graham cracker cookie on the bottom. I’m sure it’s great either way!