That Skinny Chick Can Bake
2 S'mores brownies on an oval plate

S’mores Brownies with a Graham Cracker Crust

Home » 900+ Best Dessert Recipes » S’mores Brownies with a Graham Cracker Crust

With a graham cracker crust, brownie center, and a mini marshmallow topping, these S’mores Brownies are destined to become a favorite treat! 

Perfect for summer picnics when there’s no campfire in sight, these S’mores Brownie Bars are as dreamy as they look!!

S'mores Brownies with a graham cracker crust stacked on a small square white plate

S’mores Brownie Recipe

We spent many family vacations camping out west…and when we weren’t camping we were picnicking around a roaring campfire. We hit most of the National Parks: Banff, Yellowstone, the Grand Tetons, Rocky Mountain, the Grand Canyon…all in either our Plymouth station wagon without a radio or air conditioner or the Big Blue Dodge van. S’mores were always a given when we were dining outdoors.

What are S’mores?

S’mores, short for some more, debuted in a 1920’s cookbook as a graham cracker sandwich. They were already a popular campfire treat with the Boy Scouts and Girl Scouts at that time. Composed of two layers of graham crackers sandwiched around a toasted marshmallow and a piece of a chocolate bar. The warm marshmallow melted the chocolate making a warm gooey treat!

How to Make Layered S’mores Brownies


We’d gather sticks while my dad started the fire. He’d let us whittle the ends with his trusty Swiss Army knife to make our marshmallows easy to pierce. I liked my s’mores charred and gooey all the way through.

But these S’mores Brownies are so much better than their rustic inspiration. Totally irresistible with 3 yummy layers! 

  • PRO-Tip: Start by lining your baking pan with non-stick foil. The broiled marshmallows get gooey, so this helps minimize the topping sticking to the pan. You can also spray with non-stick cooking spray if you don’t have the foil on hand.
  • Mix up the crust ingredients and pat into the bottom of the pan. PRO-Tip: I like to use the flat bottom of my measuring cup to pat down and smooth out the layer. Bake as directed and let cool as you’re making the brownie batter.
  • Use an offset spatula to spread on the brownie batter. It will help make a more level layer. Bake as directed.
  • Brownies will start giving off an amazing chocolate aroma close to the time they are done. Check to see if the brownies have pulled away from the sides of the pan a bit and the center is set before pulling out of the oven.
  • When the brownies are cool, cover the surface with mini marshmallows. If you want to be extra fancy, you can line them all up so they’re all upright (flat side down) before broiling. But this isn’t necessary. Try to completely cover the brownies.
  • Pop in the broiler for a few minutes until the marshmallows are toasted on top. PRO-Tip: Make sure to watch carefully while under the broiler. These s’mores brownie bars can easily go from browned to burnt if you walk away.


two s'mores bars stacked on a square white plate

A Home Run with This S’mores Dessert

My youngest was home from college when I made these, and they sure disappeared fast. He has not been impressed with dorm food thus far. I have a feeling this sort of treat does not make their menu.  I even sampled a couple; it’s the graham cracker crust that tempts me every time! If you’re a fan of s’mores inspired desserts, these S’mores Cookie Bars and S’mores Cookies are tasty, too. Make sure to check out all my Brownie Recipes and Cookie Recipes, too.

 This recipe was first shared in December 2012 (prime s’mores season???). Photos and text were updated in 2020.

two s'mores bars stacked on a square white plate

S’mores Brownies with a Graham Cracker Crust

Brownies inspired by the classic s'mores, a campfire treat

Prep Time 20 minutes
Cook Time 27 minutes
Total Time 47 minutes
Yield 16 bars


For the crust:

  • 1 1/2 cups graham cracker crumbs
  • 6 tablespoons butter, melted
  • 2 tablespoons sugar

For the brownie layer:

  • 8 tablespoons unsalted butter
  • 4 ounces unsweetened chocolate, chopped
  • 1 1/4 cups sugar
  • 1 teaspoon vanilla
  • 1/4 teaspoon salt
  • 2 eggs
  • 1/2 cup flour

For the topping:

  • Approximately 2 cups mini marshmallows


  1. Preheat oven to 350º. Line an 8 x 8-inch pan with non-stick foil (or foil sprayed with Pam). Set aside.
  2. Combine the graham cracker crumbs, melted butter in a bowl and mix till well combined. Press the crumbs evenly into the bottom of the pan and bake for 7 minutes. Allow crust to cool while making brownie layer.
  3. Turn the oven temperature up to 400º.
  4. In the microwave, melt butter and chocolate together. Stir often, till smooth and melted.
  5. Stir in sugar, vanilla and salt. Stir in eggs one at a time, followed by flour. Stir until very smooth, till mixture pulls away from sides of the bowl. Spread batter into prepared pan and bake for 18+ minutes or until brownies pull away from the sides of the pan and middle looks set*.
  6. Let cool completely, then sprinkle with enough marshmallows to cover the surface of the brownies in one even layer.
  7. Place pan under the broiler, about 6 inches from element. Watch very carefully and broil for about 2 minutes till marshmallows are toasted. Times may vary with different do not leave the broiler unattended.
  8. Cool and cut with a hot knife to serve.


If using a box brownie mix as substitution, follow baking instructions on the box.

*Note: 18 minutes worked well for my oven, but other testers have needed to bake their brownies longer.

Recommended Products

As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.

Nutrition Information:



Serving Size:

1 bar

Amount Per Serving: Calories: 278Total Fat: 15gSaturated Fat: 9gTrans Fat: 0gCholesterol: 47mgSodium: 88mgCarbohydrates: 33gFiber: 2gSugar: 23gProtein: 3g


Please leave a comment on the blog or share a photo on Pinterest


Note: This post may contain affiliate links; view my Disclosure Policy for details. I earn a small percentage from any purchase you make by clicking on these links at no extra cost to you.

31 comments on “S’mores Brownies with a Graham Cracker Crust”

  1. I love really love s mores and I have a bag of s mores wait for something! look delicious Lizzy!
    bookmarked of course!

  2. Dirt time in many times Im first LOL

  3. Yum! I can see why these disappeared quickly! They sound fantastic!

  4. Liz, this nostalgic treat got your treatment. The brownie layer is a pleasant surprise. Perfectly executed my friend…those in your circle will definitely have happy hoildays!

  5. Delicious ! I haven’t eaten marshmallows for years 😛 Maybe , I’ll buy it tomorrow 😀

  6. oh my gosh, do these look great, happy holidays!! anne

  7. That layer of marshmallows looks so perfectly cooked. I was hoping there would be s’mores desserts this month and you didn’t disappoint!

  8. marshmallows and chocolate?? this sounds good (and looks good too!!). I lost your website (my yahoo reader do not recognize your new location, but now I find you again!!). Have a very good time with your family during the festive holiday!!

  9. Liz–I thought about making brownies for this…glad I didn’t, they would never have compared to your beautiful creation. Well Done!

  10. Liz, this looks amazing! Who can resist a smores in any shape or form? Nobody, that’s who, especially not me 🙂

  11. Lizzy, I do not know how you are a skinny chick because I know I’d be the size of a house if such delicious things as you cook were in temptations’ way every day. Love these unusual brownies. I know it’s going to be a wonderful festive holiday in your house!

  12. As usual another hit! Love it…. Merry Christmas to you and your family. Last chance I have to email before the weekend of open to close work days.. have a Happy New Year too! Cant wait to see what you will be adding to thi wonderful blog in 2013 glad we became friends! Claudia

  13. Never turn down a good s’more. Looks perfect!

  14. These brownies look wonderful!

  15. Oh how I loooove s’mores brownies! These look so perfect too. Mine are always a mess. Lovely job!

  16. Oh look at these gorgeous things!!!! I would like one right now please! 😉

  17. Get out! These are amazing! I think my eyeballs just jumped out of their sockets.

  18. Incredible!! What a dessert!! Merry Christmas Lizzy 🙂

  19. Oh-I think I have to make this one!!!!
    ps. your last comment made me laugh out loud, you are too funny-I’m crossing my fingers for a game in your neck of the woods;-)

  20. I was just wondering what I was going to do with all those mini marshmallows in my cupboard. Now I know!

  21. Many S’More recipe variations seem to bombard the web…But yours is a keeper, Liz! Thank you for sharing this recipe=)

  22. I was guessing if these tiny snow balls were marshmallows & I’m right. I’ve never eaten something like that before. Wish I could try your bakes some day. Happy holidays, lovely Liz!

  23. I love s’mores, these brownies look like heaven!

  24. I’ve always wanted to make S’mores brownies!!! Yours look too good for words.

  25. These look amazing! I made some oreo-crust smores-like things last week. I want to try yours – the graham cracker crust is looking oh so good with those toasty ‘mallows!

  26. These are gorgeous! Look at those layers. Who needs a campfire to get a s’more.

  27. Can’t take my eyes off from the screen!! They are heavenly!

  28. Wow, these are gorgeous! I love the chocolate/graham cracker combo, too. Very nice! 🙂

  29. Nice recipe. I love a simple brownie recipe which is easy for the kids to help with 🙂
    Thanks for sharing,

  30. Ahhhhh I love s’mores brownies!!!! Yours look super scrumptious!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.