Homemade Marshmallow Brownies are fudgy, chocolaty brownies with a melted marshmallow topping! Perfect from scratch brownie recipe for anyone who loves chocolate & marshmallows!
Homemade brownies are a favorite of mine and the addition of marshmallows in this recipe is amazing! They’re rich, chocolaty and just perfect. Marshmallow swirl brownies are just another version of this simple and traditional chocolate dessert. I love how simple and easy these are to make and I’m sure you will too!
What are Marshmallow Brownies?
Marshmallow brownies are a brownie recipe that includes fluffy melted and gooey marshmallows. Sandwiched between a fudgy thick brownie and a rich layer of homemade chocolate frosting, these marshmallows are right at home. Every bite is as delicious as it is eye-catching.
Marshmallow Brownies Ingredients
For the brownies you will need:
-Sugar: We want 1 cup of granulated white sugar to help get a sweet brownie with crunchy sweet edges around the pan.
-Butter: 1/2 cup of unsalted butter (softened) will add a depth of richness and the fat we want to make these turn out great. Oil could be used, but butter adds a better flavor.
-Eggs: Two eggs will work as the binder and a leavening agent for these brownies keeping them nice and fudgy/thick.
-Vanilla: We only need 1 teaspoon of vanilla extract to help get a good flavor base for these brownies.
-Cocoa Powder: With 1/3 cup of baking cocoa powder we can get a rich chocolate flavor that tastes incredible.
-Salt: This is the flavor enhancer and it works to make everything else taste great! We need 1/4 teaspoon of salt to do this.
-Milk: Thinning down the batter just a tad is 3 tablespoons of milk. You can use dairy or plant based milk here.
-Flour: Just 1/2 cup of all-purpose flour is needed to create the gluten-base for this brownie recipe.
-Chocolate Chips: Optional but so worth it- 1/2 cup of mini chocolate chips to scatter around in the batter. Yum!
-Marshmallows: We need a 10 ounce bag of mini marshmallows to make this recipe.
For the Chocolate Frosting we will need:
-Butter: 3 tablespoons of softened butter will allow the frosting to get a depth of flavor and richness as well as a nice shine.
-Chocolate Chips: We only need 1/4 cup of chocolate chips to get a good chocolate flavor.
-Milk: With 2 tablespoons of milk we can thin down the frosting so it’s not too thick.
-Powdered Sugar: Adding 1 cup of powdered sugar is perfect for making the frosting thicker, sweeter, and creamier.
How to Make Marshmallow Brownies
Preheat your oven to 350 degrees F and then line an 8×8 baking dish with parchment paper and set it aside.
In a bowl, whisk together the sugar and butter.
Add in the eggs, vanilla, cocoa powder, and milk. Whisk until the mixture is smooth.
Stir in the flour, salt, and mini chocolate chips. Stir until the flour has been well incorporated.
Bake in the oven for 30 minutes until the brownies have set. Then remove from the oven.
Once the brownies are finished baking, top with the mini marshmallows and return to the oven for about 3 minutes, (until they begin to puff).
Remove the brownies from the oven again and let cool for 10-15 minutes before adding the frosting.
Make the frosting by combining the butter, chocolate chips, and milk in a bowl.
Microwave for 45 seconds and then add in the powdered sugar and whisk until smooth.
Pour the frosting over the warm brownies and swirl gently with a spatula. Let cool to set.
Chill in the fridge or freezer for 20-30 minutes prior to cutting for a cleaner cut. I also spray my knife with non-stick spray! ENJOY!
MARSHMALLOW BROWNIES
Ingredients
- 1 cup sugar
- 1/2 cup butter, softened
- 2 eggs
- 1 tsp vanilla
- 1/3 cup cocoa powder
- 1/4 tsp salt
- 3 TBSP milk
- 1/2 cup all-purpose flour
- 1/2 cup mini chocolate chips
- 10 oz bag mini marshmallows
Chocolate Frosting
- 3 Tbsp butter softened
- 1/4 cup chocolate chips
- 2 Tbsp milk
- 1 cup powdered sugar
Instructions
- Preheat oven to 350 degrees. Line an 8x8 pan with parchment paper and set aside.
- Whisk together sugar and butter.
- Add eggs, vanilla, cocoa powder, and milk and whisk until smooth.
- Stir in flour, salt, and mini chocolate chips, stirring until flour is well incorporated.
- Bake for 30 minutes, until brownies are set. Remove from oven.
- Once brownies are cooked, remove from oven and spread with marshmallows. Do your best to get them even, but it doesn't have to be perfect- you're going to spread it around a bit afterwards. Return to the oven for about 3 minutes- until marshmallows begin to puff. (You don't want the marshmallows to brown so keep a close eye on them.)
- Take brownies out of the oven. Cool for about 10-15 minutes. Make the frosting.
Frosting
- Combine butter, chocolate chips, and milk in a bowl. Microwave for 45 seconds. Add powdered sugar and whisk until smooth.
- Pour frosting over warm brownies. Swirl gently with a spatula. You just want to spread the marshmallows around a bit and incorporate a bit of the chocolate frosting into the melted marshmallows. Let cool to set.
- Chill in the fridge or freezer for 20-30 minutes prior to cutting for a cleaner cut. I also spray my knife with non-stick spray! ENJOY!
Nutrition
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How to Store Marshmallow Brownies
How you choose to store these brownies depends on how fast you plan to eat them. While they can do just fine in the fridge for a few days, they also hold up well if left covered on the counter. It’s up to you as to which way you’d prefer to enjoy them!
Can you freeze marshmallow brownies?
These brownies can be frozen! Before freezing, I recommend slicing them into serving sized squares and flash freezing for 2 hours on a baking sheet until solid. Then individually wrap them up in plastic wrap before storing in an airtight container. Then, when you want to eat a sweet chocolaty treat, all you have to do is remove a piece of brownie from the freezer and let it thaw for an hour or so on the counter until soft.
How to cut marshmallow brownies
This IS the BIG question haha. With the gooey and soft marshmallows on top, cutting straight lines can be a rather daunting task. Thankfully I have an awesome trick up my sleeve that I’m willing to share. After your brownies have completely cooled and set- stick them in the freezer for 20 minutes. Once they’re partially frozen, remove the brownies from the pan using the parchment paper as a sling. Use a large, sharp knife that’s been sprayed with non-stick cooking spray to make cuts in the brownie without nearly as much gooey goodness sticking to the knife. You can also rinse the knife under hot running water between slices if that helps!
Like Brownies? Check out these great brownies recipes:
- Smores Brownies Recipe
- The Best Mint Brownies Recipe
- The Easiest Brownie Recipe
- Snickers Brownie Bites Recipe
- Raspberry Cheesecake Brownies Recipe
- Double Chocolate Banana Bars Recipe
- Cookies & Cream Brownies Recipe
- Orange Cheesecake Brownies Recipe
- Red Velvet Cheesecake Brownies Recipe
- Easy Black Forest Brownie Recipe
- BEST Brownies Ever Recipe
- Glazed Orange Brownies
- The Best Mint Brownies
- Chocolate Cherry Brownie Bites
- Chocolate Chip Peanut Butter Brownies
Making marshmallow brownies from scratch is a fun and easy thing to do. You’re going to love how delicious these rich and gooey marshmallow filled brownies taste!
Homemade Marshmallow Brownies are fudgy, chocolaty brownies with a melted marshmallow topping! Perfect from scratch brownie recipe for anyone who loves chocolate & marshmallows!
Janet says
Should you cool them on counter or in fridge? Thank you.
Jessica says
It just depends on how quickly you want to serve/ eat them- both work fine!
Stephanie says
These were so yummy! The whole pan didn’t even last a whole day before we ate them all!
Suzy says
The best brownies and the kids love them! Love how easy they are to make!
Shari says
We did not like this recipe for the marshmallow top on our brownies at all. Way to sweet. Most everyone didn’t even finish eating them. Very disappointed.
Jessica says
You can always cut them smaller…