With these S’mores Brownies, you can enjoy the wonderful ooey gooeyness of a freshly made, warm s’more without leaving the comfort of your own home.
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This fun layered dessert is perfect for romantic date nights, as a late-night movie treat, or to bring to your next potluck or group picnic. The young and the old alike will love this classic dessert with a summery twist. Plus, this dessert can easily be doubled or even tripled to appease a crowd.
S’mores brownies even make excellent finger food for parties! You can cut your finished brownies into 1” cubes and serve on popsicle sticks for a kid-friendly sweet treat. You can also use a circle cutter and some vanilla ice cream to make elegant s’mores brownie sundaes or ice cream sandwiches that will be the perfect addition to a fancy dessert smorgasbord. However you choose to enjoy these s’mores brownies, I guarantee you won’t be disappointed!
Ingredients Needed for S'mores Brownies
- Butter—The butter in this recipe adds flavor and richness to your brownies. Be sure to melt your butter before mixing it with the rest of your ingredients, otherwise your batter will be too thick.
- 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. If you’re a chocoholic, try using Dutch processed cocoa for an even deeper chocolate flavor.
- 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. If you’d like your brownies to have a little extra crunch, leave your graham crackers in bigger chunks before sprinkling them on.
How to make S’mores Brownies
Prep for baking - Preheat your oven to 350°F and lightly grease an 8” square baking dish.
Melt butter and add wet ingredients - Over medium heat, melt your butter. Once the butter is liquid, add the sugar, eggs, and vanilla and mix well.
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!
Common Questions About S'mores Brownies
Can I use boxed brownie mix instead of making my own batter?
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.
Do I need to toast the marshmallows before adding them to my brownies?
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!
Tips and Variations
Cut your brownies with a plastic knife
Do you always struggle to get a clean cut on your brownies? For years, I resorted to waiting hours for my brownies to completely cool before cutting them, and even then, I’d often be left with messy looking brownies. I learned that the trick is to cut your brownies with a plastic knife! Grab any old cheap plastic knife and cut perfect looking brownies every time—even when they’re still warm!
Replace ½ cup of flour with ½ cup of 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.
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- 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!