These fudgy, gooey s'mores brownies are as easy to make as they are impressive! Use my one-bowl brownie recipe, combined with a layer of graham crackers and marshmallows, for the perfect summer dessert!
June Baking Challenge Recipe! This is the June 2024 baking challenge recipe! Make these brownies & leave a review on this post to be entered to win prizes!
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Why I Love These S'more Brownies
- One bowl recipe: These s'more brownies use my better-than-box fudgy brownies, which is the EASIEST and tastiest homemade brownie recipe.
- Ooey, gooey, and fudgy: Enough said.
- Perfect for summer! These make the best potluck dessert, as there's no refrigeration needed!
Ingredient Notes & Substitutions
- Homemade Brownie Mix: While you could make these with boxed brownies, my homemade brownie mix takes them to the next level!
- Chocolate chips: I used milk chocolate chips for that s'mores flavor, but you can use semi-sweet chips or dark chocolate chunks!
- Marshmallows: I like using large marshmallows since they're easier to press into the brownies (and have them stick), but you can also use mini marshmallows.
- Graham crackers: The layer of graham crackers on the bottom adds crunch and a sweet and salty flavor.
How to Make S'more Brownies
Step 1: Make Brownie Batter
Whisk together dry ingredients in large bowl. Add wet ingredients and mix with the whisk until just incorporated; batter will be thick.
Step 2: Scoop Into Pan & Bake
- Step 1: Line a 9x9" light-colored aluminum metal pan with parchment paper, then cover the bottom with a layer of graham crackers.
- Step 2: Scoop batter into dollops on top of graham crackers and carefully spread to the edges.
- Step 3: Top with extra chocolate chips, then bake at 325℉ for 36-40 minutes, or until brownies are 90% baked through. If you're using a 9x13 pan, bake for 24-26 minutes.
Step 3: Press on Marshmallows & Toast
- Remove the brownies from the oven and press the marshmallow halves into the top, gently pressing them into the brownies (this will help so that they don't slide off later). Brownies will feel a little jiggly & raw. Sprinkle on extra chocolate chips. Place back in the oven for 6-8 minutes or until marshmallows are puffy and very lightly brown.
- To finish them off & get the toasted color, broil on low until lightly toasted brown (this may only take 30 seconds!). You MUST watch the oven the entire time or your marshmallows will burn FAST - trust me!!!!
Step 4: Cool & Cut
Remove from the oven and allow to full cool before cutting.
Tip: While gooey treats can get messy to cut, wiping your knife off between each cut can help you achieve clean cuts.
Tips & Variations
- Bake through: It's important that your brownies are 90% baked through before topping them with marshmallows, or else they will not be able to finish baking.
- Don't skip the parchment: This will help you easily lift the cooled bars out of the pan, making them easier to cut.
Storage & Freezing
- Storage: Store in an airtight container for 3-4 days. The brownies get even fudgier on Day 2!
- Freezing: I don't recommend freezing these after putting on the marshmallows or they'll become sticky.
Frequently Asked Questions:
Yes! For a 9x9" pan, you'll need a little less than a 16-ounce bag. For a 9x13" pan, you'll use the entire 16-ounce bag.
Sure! Because the graham crackers are on the bottom, add a few minutes to the box baking time.
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S'more Brownies
Ingredients
Homemade Brownies:
- 1 ¼ cups granulated sugar
- ½ cup powdered sugar
- ¾ cups all-purpose flour
- ¾ cups unsweetened cocoa powder I've tested these with Hershey's & Target's Good & Gather brand
- 1 teaspoon kosher salt
- ½ teaspoon baking powder (not baking soda!)
- 1 tablespoon cornstarch
- 1 teaspoon espresso powder (totally optional!)
- ¾ cup semi-sweet chocolate chips or chunks
- ½ cup vegetable oil
- ¼ cups warm water
- 2 large eggs
- 1 teaspoon vanilla extract
Crust & Topping
- 16 graham cracker squares
- ½ cup semi-sweet chocolate chips or chunks, divided
- 18 large marshmallows, halved
Before you begin! If you make this, will you do me a huge favor and leave a review and rating letting me know how you liked this recipe? This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Instructions
- Whisk together dry brownie ingredients in large bowl. Add wet ingredients and mix with the whisk until just incorporated; batter will be thick.
- Line a 9x9" light-colored aluminum metal pan with parchment paper, then cover the bottom with a layer of graham crackers (14 squares). Spoon batter into dollops on top of graham crackers and carefully spread to the edges.
- Top with ¼ cup extra chocolate chips, then bake at 325℉ for 36-40 minutes, or until center 90% baked through. If you're using a 9x13 pan, bake for 24-26 minutes.Do not turn off the oven yet!
- Remove the brownies from the oven and immediately press the marshmallow halves into the top, gently pressing them into the brownies (this will help so that they don't slide off later). Brownies will feel a little jiggly & raw. Sprinkle on remaining ¼ cup chocolate chips.
- Place back in the oven for 6-8 minutes or until marshmallows are puffy and very lightly brown.
- To finish them off & get the toasted color, broil on low until lightly toasted brown (this may only take 30 seconds!). You MUST watch the oven the entire time or your marshmallows will burn FAST - trust me!!!!
- Remove from the oven and allow to full cool before cutting. While gooey treats can get messy to cut, wiping your knife off between each cut can help you achieve clean cuts.
Last Step! Please leave a review and rating letting me know how you liked this recipe! This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Notes
- Storage: Store in an airtight container for 3-4 days. The brownies get even fudgier on Day 2!
- Freezing: I don't recommend freezing these after putting on the marshmallows or they'll become sticky.
I finally got a chance to make the S’mores Brownies for the June Baking Challenge. These are so delicious! I’ll be making these again soon!
So happy to hear you enjoyed the recipe, Chantell! Thank you so much for leaving a review and for participating in the baking challenge!
These were a huge hit as an end of the year sweet treat for my coworkers! Very easy to make and absolutely delicious!
So happy to hear you enjoyed the recipe! Thank you so much for leaving a review, Jenna! I really appreciate it!
We made this as part of the June Baking Challenge. My kids are really enjoying these challenges! The brownies themselves were amazing, but the marshmallows made them a bit gooey. I would make them again, but likely as just the regular brownies. However, my marshmallow loving, 11 year old, appreciated the marshmallow addition.
Glad to hear you and the kiddos enjoyed this recipe! Thank you so much for leaving a review, Emily!
Excellent!!! I made these S'mores Brownies for my daughter. They were so easy to make. I waited for them to cool completely before cutting so I didn't have a problem with them.
So glad to hear you enjoyed the recipe! Thank you so much for leaving a review, Jo!
Loved making these treats! Super easy and so yummy!
Thank you so much for leaving a review!
I want to start out by saying that i dislike marshmallows. I usually scroll right by recipes that include them. But my daughter likes them and brownies so I thought i would give this a try. I believe in the recipes on design eat repeat and have never been disappointed. I think the key surprise to me, was the topping; it was magical. It elevated a simple recipe to 4 star rating. The only reason it did not get 5 stars is because of my problem with the mallows. It is a very individual taste and too sweet for me. But, we will be making this again on a larger scale for my classroom. Thank you again for a great recipe! Side note, I did not have large mallows so i used the small ones i had and sprinkled them around the top. I also would not have tried them if it wasnt for the june baking challenge, but i am very glad that i did! I really like the challenge every month as it really gets me outside of my baking box. lol
So glad to hear you tried out the recipe and enjoyed it! Thank you so much for leaving a review and for participating in the baking challenge, Andria!
So easy to make and tastes delicious! Ingredients are not very expensive which was a plus too!
Thank you so much for leaving a review, Callie!
So easy to make and tastes delicious! Ingredients are not very speedy which was a plus too!
Made these for the the June baking challenge and they definitely taste like s'more! I personally prefer the richness of plain brownies but my husband loves these!
So happy to hear you guys enjoyed the recipe! Thank you so much for leaving a review, Julia! I really appreciate it!
Best brownies we’ve ever had! Made them for Father’s Day and everyone was saying they liked these way better than s’mores! I 1 1/2 the brownie recipe to have them be thicker since I cooked it in a 9x13 glass pan. These were a hit for the kids and adults!
So happy to hear everyone enjoyed this recipe! Thank you so much for leaving a review, Brynn!
I made these for the June Baking Challenge and as part of our Father's Day weekend treats. I went an extra step and added peanut butter chips as well and they were amazing! I found that spraying my knife with some cooking spray before each cut worked great and I ended up with nice clean pieces. These are already on the request list for 4th of July.
I am so happy to hear you enjoyed this recipe so much, Adrienne! Thank you so much for leaving a review, I really appreciate it!
These are amazing! We just got back from being away for several weeks and I was still able to make them for my son when he sent me the post. The only “fresh” thing you need is 2 eggs but that’s something you always have in hand. These are gooey and delicious!!
I’m so happy to have found Melissa and look forward to making many more of her recipes.
I am so happy to hear you enjoyed this recipe, Dayna! Thank you so much for leaving such a thoughtful review, I really appreciate it!
A fun recipe to take your brownies to the next level! I topped the brownies with the marshmallows, crushed graham crackers, and pieces of Hershey bars to give the s’mores appearance. These were ooey, gooey delicious and had a beautiful presentation. This is my second time making these brownies this month, and this recipe will now be a staple when I want to level up my brownies!
So happy to hear you enjoyed this recipe, Katie! Thank you so much for leaving a review!
It was very easy and very yummy
Thank you so much for leaving a review, Maddie!
Obsessed with this! Classic summer vibes with an elevated twist. YUM!
Melissa took her better than boxed fudgy brownie recipe and elevated it by making it a s’more. The fudginess of the brownie paired with the toasted marshmallow is AMAZING!
So happy to hear you enjoyed this recipe, Tomma! Thank you so much for taking the time to leave a review!