Thin Mint Marshmallow Brownies

Rich, fudgy brownies are spread with lightly minted marshmallow creme, then sprinkled with crushed Thin Mints. What’s that you say? Over the top? I can’t hear you.

Thin Mint Marshmallow Brownies from The Food Charlatan

Sometimes we get together with Eric’s out-of-state siblings (on a Google hangout) and play board games. We were playing Scattergories the other day when I caught Eric writing something down after the buzzer had gone off. “CHEATER!!!!” I yelled as loud as I could and we all started verbally abusing him.

He looked at me with puppy dog eyes and earnestly said in an undertone, “I was writing you a note Karen…”

Well then my heart melted and my eyes went starry and I said “Really?” I fully repented. What a sweet husband.

Thin Mint Marshmallow Brownies from The Food Charlatan

I was about to tell you all about it, because everybody loves a sappy story now and then. (No? Just me?) So I asked him a few minutes ago what he was writing me.

“Oh. Totally cheating. I can’t believe you guys bought that.”

(Cue punching.) Never again. My heart is now encased in ice. Watch out, Eric. The board game police are gonna HUNT YOU DOWN.

Thin Mint Marshmallow Brownies from The Food Charlatan

But back to the sappy love story. Let’s talk about these brownies. (If these aren’t a sappy love story, then I don’t know what is.) My favorite recipe for rich, fudgy brownies (made with brown butter…yes, the obsession continues) smothered with marshmallow and mint cookies. You could use a box mix if you want. I’m no judge.

Thin Mint Marshmallow Brownies from The Food Charlatan

The marshmallow creme only has a few drops of peppermint in it. Like maaaaybe an 1/8 teaspoon. I have this terrible habit of adding too much peppermint to desserts and ruining them. When I made this the first time I added a 1/2 teaspoon. DON’T DO THAT. You may as well spread toothpaste all over your brownies, the whole tube. THESE brownies though, are the perfect level of mint, which is to say, not in your face. Make these for St. Patrick’s Day!

Do you guys give up? Or are you thirsty for more?
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Thin Mint Marshmallow Brownies


    For the brownies
  • 3/4 cup (1 and 1/4 sticks) salted butter
  • 1 and 1/4 cup granulated sugar
  • 3/4 cup unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1/2 tablespoon water
  • 1 teaspoon vanilla extract
  • 2 eggs
  • 1/2 cup all-purpose flour
  • 1/2 cup semi-sweet or dark chocolate chips
  • To top:
  • 1 (7oz) jar marshmallow creme
  • 1/8 teaspoon (or less) peppermint extract
  • 10 drops green food coloring
  • 15 thin mints or mint Oreos, roughly chopped


  1. Preheat oven to 350 degrees F.
  2. Line an 8x8 or 9x9 inch baking dish with aluminum foil and spray with nonstick spray. Or just spray the pan.
  3. Melt butter in a large saucepan over medium heat. Stir occasionally. The butter will foam up, then back down and start forming brown colored milk solids or “bits”. When it is a nice light brown and it starts to smell like you could drink it straight, that’s when you know it’s done.
  4. (You can skip this step and just melt the butter if you want. The brownies don't taste like brown butter, this step just makes them extra rich.)
  5. While your butter is browning, combine sugar, cocoa, and salt in a bowl or stand mixer.
  6. Once the butter is nice and brown, immediately pour the butter into the bowl with the sugar and cocoa (so that it stops cooking. You don’t want it to burn). Beat the mixture until it is smooth.
  7. Add the water and vanilla. Add the eggs, mixing quickly so they don't curdle (if your butter is still pretty hot).
  8. Add the flour and chocolate chips and mix until just incorporated. Batter will be about the consistency of cement. Have a taste. It’s awesome.
  9. Use a sturdy rubber spatula to spread batter in the prepared pan. Bake for 25-30 minutes until toothpick inserted comes out clean.
  10. Let the brownies cool. Or stick them in the freezer for 10 minutes like I did and call it good.
  11. Peel all the foil off the top of the jar of marshmallow creme. Microwave for 15-20 seconds, or until it just starts to rise above the lip of the jar.
  12. Scoop the creme into a bowl or stand mixer. Add a little peppermint extract and green food coloring. Mix well, scraping sides.
  13. Pour the marshmallow creme over the brownies and spread to the edges.
  14. Top with the chopped thin mints, pressing in lightly with your hands if necessary. Let the marshmallow settle back to room temperature before cutting and serving.

Source: Recipe idea from Southern Girl Ramblings

Thin Mint Marshmallow Brownies from The Food Charlatan

Thin Mint Marshmallow Brownies from The Food Charlatan

You’ll like these goods too:

Mint Chocolate Chip Cookies:

Mint Chocolate Chip Cookies from The Food Charlatan

Peanut Butter S’mores Bars:

Peanut Butter S'mores Bars

Snickers Brownie Bars:

Snickers Brownie Bars

 Homemade Brownie Oreos:

Homemade Brownie Oreos from

More Mint!

Mint Brownies from Tastes Better from Scratch
Thin Mint Mississippi Mud Brownies from Oh Sweet Basil
Thin Mint S’mores from Crazy for Crust





  1. says

    Karen, looking at these pictures is sheer torture! We have had a lot of cold/snowy/icy weather this week and of course what else do you do but bake? Soo, now I am craving sugar e.v.e.r.y. day – in other words; I want these brownies!! ;^D
    Lexi recently posted…Mint Cookie Chocolate Chip CookiesMy Profile

  2. says

    I am the worst at board games! I’m not very competitive, and am very tempted to cheat all the time. All in fun right?! That is so funny Eric tricked you into thinking it was a nice note. And that is so fun you play games on Google Hangout! Fun way to get together all the time without travelling. And these brownies? I can’t EVEN!
    Natalie @ Tastes Lovely recently posted…Slow Cooker Irish Guinness Beef StewMy Profile

  3. says

    I pretty much had to quit playing Scrabble (and other board games) with my mom because she’s the most shameless cheater ever. She makes things up and claims that words in French are viable because she’s fluent so clearly that make it ok. So frustrating! Anyway I think I’m going to make these brownies and not share any with her unless she promises not to cheat at Scrabble haha.
    Rebecca @ Dorm Room Baker recently posted…Baked Tortilla Chips and SalsaMy Profile

  4. says

    I can’t belive you fell for that. Oldest trick in the book! ;) But now he owes you a love note. Make him write you a poem. Lost art.
    These are true love. Good lord, you nailed these pics and then some!
    Mir recently posted…Better Than Tagalong BarsMy Profile

  5. says

    I can’t believe you fell for that. Oldest trick in the book! ;) But now he owes you a love note. Make him write you a poem. Lost art.
    These are true love. Good lord, you nailed these pics and then some!
    Mir recently posted…Better Than Tagalong BarsMy Profile

  6. says

    I totally love sappy love stories! I wish it were true… Thanks Eric, for bursting my bubble. ;) When my guy had to go to Taiwan a few years ago, I actually wrote him a note for every single day he was gone. What totally surprised me was when I found ALL of them when we moved last summer — he kept them!! Guess he’s kind of a romantic too. Anyway. These brownies. Definitely fall under the Amy category of romance. They look SO good!
    Amy @ Amy’s Healthy Baking recently posted…Mint Chocolate Chip CookiesMy Profile

  7. says

    Karen, I’ve tried mint chocolate ice-cream, but I’ve never tried anything like these brownies. This looks so exciting!! Can’t wait to try it out. Thank you very much for this delicious recipe :)

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