Best S'Mores Brownie Recipe! Rich brownies topped with gooey marshmallows & graham cracker crumbs - try these s'more brownie bars for dessert!
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We all love a warm, gooey s'more... but s'mores brownies take it to a whole new level.
Imagine all the things you love about a s'more (melted marshmallows, sweet graham crackers) on top of a rich fudgey brownie.
Talk about the ultimate dessert!
These fun layered brownies are perfect for a weeknight treat, a movie night snack, or to bring to a picnic!
why we love these s'mores brownies
- Delicious: Some of the best recipes are simple and still taste amazing. Even though this recipe is made with only a few ingredients it’s SO yummy!
- Cheap: With grocery store costs on the rise, this is a delicious, budget friendly dessert!
- No Fire Needed: If you love s'mores but don't want to get involved with a fire - this recipe is for you!
Ingredients Needed for S'mores Brownies
- Butter-The butter in this recipe adds flavor and richness to your brownies.
- White Sugar—White sugar is the sweetener of choice in this recipe. Unlike brown sugar, it’s flavor won’t overpower everything else.
- Eggs-Eggs are used as a binding and stabilizing agent in this recipe. If you’re vegan or have an egg allergy, feel free to use your favorite egg substitute instead.
- Vanilla-A dash of vanilla helps to deepen the chocolate flavor of your brownies. Mexican vanilla is my favorite, but even imitation vanilla will work.
- Cocoa powder-Unsweetened cocoa powder is the way to go in this recipe.
- All-purpose flour-Since there is a lot of flour in this dessert, I recommend sticking with all-purpose, as it will likely bake up the best.
- Salt-Adding just a dash of salt to your brownies actually helps to enhance the overall sweetness of your dessert.
- Baking powder-Putting baking powder in your s’mores brownie batter will ensure that your brownies will bake evenly.
- Mini marshmallows-I think miniature marshmallows are the best to use in this recipe because they toast quickly and add a nice texture to your brownies; however, regular sized marshmallows or even marshmallow fluff can be used instead.
- Graham Crackers-Coarsely crushed graham crackers add the perfect finishing touch to these s’mores brownies.
How to make S’mores Brownie Bars
- Prep for baking - Preheat oven to 350 °F and lightly grease an 8” square baking dish with cooking spray.
- Melt butter- Over medium heat, melt your butter. Once the butter is liquid, add the sugar, eggs, and vanilla and mix well.
- Add the dry ingredients - Once combined, add the cocoa powder, flour, salt, and baking powder to your butter mixture.
- Partially bake - Gently pour your brownie mixture into your greased pan and spread evenly. Bake for 20-22 minutes at 350°F or until almost done.
- Add marshmallows and finish baking - Pull your partially baked brownies out of the oven and quickly top with your miniature marshmallows. Place the pan back into the oven and finish baking—this should take about 3-5 minutes.
- Top, serve, and enjoy - Once out of the oven, top your brownies with some crushed graham crackers and allow them to cool. Cut, serve, and enjoy warm or at room temperature!
Substitutions for S'More Brownies from Scratch:
Butter: Butter is essential to this recipe. Be sure to melt your butter before mixing it with the rest of your ingredients, otherwise your batter will be too thick.
Sugar: We don't recommend substituting white sugar unless you have to, but White sugar can be used interchangeably with brown sugar. You can add 1 teaspoon of molasses to white sugar to make brown sugar. Check out this post on Sugar Substitutes for Baking for other ideas.
Eggs: We don't recommend substituting eggs, but you can read this article on Egg Substitutions for Baking if you need to substitute. Try it at your own risk!
Vanilla Extract: Helps to add flavor, we don't recommend substituting.
Salt: Adding just a dash of salt to your brownies actually helps to enhance the overall sweetness of your dessert.
Mini marshmallows: Mini marshmallows are the best to use in this recipe because they toast quickly and add a nice texture to your brownies; however, regular sized marshmallows or even marshmallow fluff can be used instead.
Graham Crackers: Coarsely crushed graham crackers add the perfect finishing touch to these s’mores brownies. If you’d like your brownies to have a little extra crunch, leave your graham crackers in bigger chunks before sprinkling them on.
S'mores Brownie Recipe FAQ
Absolutely! If you’re short on time or are missing a few ingredients, you can still totally make this recipe with boxed brownie mix. Ghirardelli brownie mix is my personal favorite. Simply take the boxed brownie mix of your choice and make according to instructions. When they have 5 or so minutes left to bake, pull them out and add your marshmallows. Finish baking, top with your graham crackers, and serve.
Nope! Because you add the miniature marshmallows before the brownies are finished baking, they should toast naturally in the heat of the oven. If for some reason your marshmallows aren’t as toasted as you’d like, you can place your brownies under the broiler for a minute or two. Just be sure to keep an eye on your marshmallows, otherwise they might burn!
S'Mores brownies have 212 calories per brownie.
The S in s'more stands for 'some more'. It's an abbreviated version of the phrase!
Yes, you can add marshmallows to brownie mix! It's best to add marshmallows at the end on top of the brownies when they're almost done baking. It's not recommended to add marshmallows into brownie mix because they will melt.
Tips & Variations for Brownie Smores
- Add more graham crackers: If you’d like your s’mores brownies to have even more classic s’mores flavor, try replacing ½ cup of flour in your brownie batter with ½ cup of crushed graham crackers. This shouldn’t affect the way your brownies bake too much but will really increase the cinnamony graham flavor in your brownies.
- Use boxed mix brownies: If you're short on time you can use box mixed brownies and simply top with marshmallows and graham crackers at the end.
How to Store S Mores Brownies:
Storing: You can store these s'mores brownies for up to 4 days in an airtight container at room temperature.
Freezing: You can freeze s'more brownies recipe for up to 3 months in an airtight container. It's best to freeze Thaw completely before enjoying. The graham
Freezing Cookie Dough: You can freeze cookie dough! Check out this post for How to Freeze Cookie Dough for tips on saving cookie dough for later.
More Brownies Recipes You'll Love
- M&M Brownies
- Strawberry Brownies
- Air Fryer Brownies
- Heart Shaped Brownies
- Reese's Peanut Butter Cup Brownies
- Preheat your oven to 350°F.
- Grease an 8” by 8” baking dish.
- In a saucepan on the stove, melt your butter.
- In a bowl mix together melted butter, sugar, eggs, and vanilla extract until combined.
- To your butter mixture, add the cocoa powder, flour, salt, and baking powder and mix until a thick batter forms.
- Pour your brownie batter into your greased pan and bake at 350°F for 20-22 minutes or until mostly done.
- Quickly pull your brownies out of the oven, top with your marshmallows, and place back in the oven to finish baking. This should take 3-5 minutes.
- When finished, pull your brownies out of the oven and top with your crushed graham crackers.
- Allow your brownies to cool slightly before cutting, serving, and enjoying!