These Ultimate Marshmallow Brownies combine the rich, fudgy texture of classic brownies with the sweet, gooey delight of marshmallow creme. Every bite delivers an indulgent experience that’s both nostalgic and irresistible, making them the perfect treat for any occasion.
Why You’ll Love This Recipe
These Ultimate Marshmallow Brownies are a game-changer for dessert lovers. The combination of dense, chocolatey brownie base with swirls of fluffy marshmallow creme creates a texture contrast that’s absolutely divine. Unlike regular brownies, these treats offer pockets of sweet marshmallow goodness that melt in your mouth. They’re perfect for potlucks, bake sales, or whenever you want to impress with minimal effort. The recipe uses simple pantry ingredients, yet delivers bakery-quality results that will have everyone asking for the recipe.
Ingredients You’ll Need
- 2 cups white granulated sugar
- 3 large eggs
- 1 egg yolk
- 1/2 cup unsalted butter, melted
- 2 tsp pure vanilla extract
- 1/2 cup oil (canola or vegetable)
- 3/4 cup all-purpose flour
- 1 cup unsweetened cocoa powder (use Dutch process cocoa powder)
- 1 1/2 TBSP cornstarch
- 1/2 tsp salt
- 1 cup semi-sweet chocolate chips
- 1 cup marshmallow creme
How to Make Marshmallow Brownies
Step-by-Step Instructions
Step 1: Prepare Your Pan and Oven Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some overhang for easy removal. Lightly grease the parchment paper with cooking spray or butter.
Step 2: Mix the Wet Ingredients In a large mixing bowl, whisk together the granulated sugar, eggs, and egg yolk until well combined and slightly pale. Add the melted butter, vanilla extract, and oil, mixing until smooth and fully incorporated.
Step 3: Combine Dry Ingredients In a separate bowl, sift together the flour, cocoa powder, cornstarch, and salt. This step ensures there are no lumps and creates a smoother brownie texture.
Step 4: Create the Brownie Batter Gradually fold the dry ingredients into the wet ingredients using a wooden spoon or rubber spatula. Mix just until combined – don’t overmix, as this can lead to tough brownies. Fold in the chocolate chips.
Step 5: Layer and Swirl Pour half of the brownie batter into the prepared pan and spread evenly. Drop spoonfuls of marshmallow creme over the batter, then pour the remaining brownie batter on top. Use a knife to create beautiful swirl patterns by gently dragging it through the layers.
Step 6: Bake to Perfection Bake for 28-32 minutes, or until a toothpick inserted into the brownie portion (not the marshmallow) comes out with a few moist crumbs. The marshmallow areas will be puffed and lightly golden.
Step 7: Cool and Serve Allow the Ultimate Marshmallow Brownies to cool completely in the pan before cutting. This helps them set properly and makes for cleaner cuts.
Helpful Tips
Use Room Temperature Eggs: This helps create a smoother batter and better texture in your finished brownies.
Don’t Overbake: The key to fudgy brownies is removing them while they’re still slightly underdone. They’ll continue cooking from residual heat.
Warm the Marshmallow Creme: If your marshmallow creme is too thick to swirl easily, microwave it for 10-15 seconds to soften it slightly.
Line Your Pan: Parchment paper makes removal so much easier and prevents sticking, especially with the sticky marshmallow component.
Let Them Cool: As tempting as it is to cut into warm brownies, cooling allows the marshmallow to set and prevents a gooey mess.
Details
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 24 brownies
Difficulty: Easy
These Ultimate Marshmallow Brownies strike the perfect balance between rich chocolate flavor and sweet marshmallow indulgence. The Dutch process cocoa powder creates an intensely chocolatey base, while the cornstarch helps achieve that coveted fudgy texture. The combination of butter and oil provides both flavor and moisture, ensuring these brownies stay soft for days.
Notes
- Dutch process cocoa powder is preferred for its deeper, less acidic flavor, but natural cocoa powder can be substituted if needed
- The egg yolk adds extra richness and helps create a denser, fudgier texture
- Store-bought marshmallow creme works perfectly, but you can also use mini marshmallows if preferred
- These brownies actually improve in flavor after a day, as the marshmallow settles and melds with the chocolate
Frequently Asked Questions
Can I use mini marshmallows instead of marshmallow creme? Yes! Use about 1 1/2 cups of mini marshmallows. Sprinkle them between the brownie layers and on top before baking.
How do I know when the brownies are done? Insert a toothpick into the brownie portion (avoiding marshmallow areas). It should come out with a few moist crumbs, not completely clean.
Can I make these ahead of time? Absolutely! These Ultimate Marshmallow Brownies actually taste better the next day. Store covered at room temperature for up to 4 days.
Why are my brownies too cake-like? This usually happens from overmixing the batter or overbaking. Mix just until ingredients are combined and check for doneness early.
Can I freeze these brownies? Yes, wrap individual pieces in plastic wrap and freeze for up to 3 months. Thaw at room temperature before serving.
Storage Instructions
Store your Ultimate Marshmallow Brownies in an airtight container at room temperature for up to 4 days. For longer storage, wrap individual pieces in plastic wrap and freeze for up to 3 months. If the marshmallow becomes too sticky in warm weather, refrigerate the brownies for 30 minutes before serving to firm them up.
Related Recipes
Looking for more delicious brownie variations? Check out these amazing recipes from runoflif.com:
- Double Chocolate Fudge Brownies – For serious chocolate lovers
- Peanut Butter Swirl Brownies – The perfect chocolate-peanut butter combo
- Salted Caramel Brownies – Sweet meets salty perfection
- Cookies and Cream Brownies – Oreo lovers rejoice
Conclusion
These Ultimate Marshmallow Brownies are everything you want in a dessert – rich, indulgent, and absolutely irresistible. The combination of fudgy chocolate brownies with swirls of sweet marshmallow creme creates a treat that’s both familiar and special. Whether you’re baking for a crowd or treating yourself to something extraordinary, this recipe delivers consistent, bakery-quality results every time. The best part? They’re made with simple ingredients you probably already have in your pantry. So go ahead, treat yourself to these heavenly Ultimate Marshmallow Brownies – you deserve it!