Marshmallow Brownies with Fudge

Marshmallow brownies with fudge remind me of one weekend when I needed a last-minute dessert for a family movie night so I decided to whip up something rich and crowd-pleasing. I had some brownie mix on hand and a half-full bag of mini marshmallows and just like that the idea for these gooey fudge-topped treats came together. The moment I pulled them from the oven and the marshmallows were golden and melty so I knew this would be a repeat recipe.

Ever since then these brownies have become my go-to for any occasion when I want to impress without overcomplicating things. The layers of soft chocolate brownie and smooth fudge topped with toasted marshmallows make every bite feel like a decadent little celebration so they’re always a huge hit whether it’s a birthday a picnic or just a sweet craving I need to satisfy.

Ingredients

Here’s what I use for this recipe. You can always make substitutions if you prefer!

• Unsweetened cocoa powder – Brings deep chocolate flavor to the base.
• All-purpose flour – Provides structure for thick, chewy brownies.
• Granulated sugar – Sweetens the batter and enhances the chocolate.
• Eggs – Bind the ingredients and add moisture and richness.
• Butter – Gives that classic fudgy texture and buttery flavor.
• Vanilla extract – Adds warmth and depth to the chocolate profile.
• Salt – Enhances all the other flavors and balances the sweetness.
• Semi-sweet chocolate chips – Melted into a thick fudge layer.
• Heavy cream – Creates a smooth, creamy fudge topping.
• Mini marshmallows – Toast to perfection for that gooey top layer.

Tools You’ll Need

• Mixing Bowls – For making the brownie batter and fudge separately.
• Whisk & Spatula – Whisk helps blend dry ingredients and spatula is perfect for folding and spreading batter.
• Measuring Cups & Spoons – Ensures every layer turns out just right.
• 9×9 Baking Pan – Ideal size for thick brownies with plenty of topping.
• Parchment Paper – Makes it easy to lift the brownies out for clean slicing.
• Saucepan – Used for melting the fudge topping smoothly.
• Oven Broiler or Kitchen Torch – Toasts the marshmallows to golden perfection.

Instructions

Step 1: Preheat and Prep

I preheat the oven to 350°F and line a 9×9 pan with parchment paper leaving a bit hanging over the edges for easy removal later.

Step 2: Make the Brownie Batter

In a bowl I whisk together the melted butter and sugar until combined and then I add in the eggs and vanilla mixing until smooth. I stir in the cocoa powder flour and salt just until the batter is thick and shiny.

Step 3: Bake the Brownies

I spread the batter evenly in the pan and bake it for about 25 to 30 minutes or until the center is just set and a toothpick comes out with a few moist crumbs.

Step 4: Prepare the Fudge Topping

While the brownies are baking I melt the chocolate chips and heavy cream together in a saucepan over low heat stirring constantly until smooth and glossy.

Step 5: Add the Fudge

Once the brownies are out of the oven I pour the warm fudge over the top and use a spatula to spread it evenly to the edges.

Step 6: Add and Toast the Marshmallows

I immediately sprinkle a generous handful of mini marshmallows on top and either place the pan under the broiler for 1–2 minutes or carefully toast them with a kitchen torch until they’re golden and slightly crispy.

Step 7: Cool and Slice

I let everything cool completely before lifting the brownies out of the pan and slicing them into squares so they hold their shape beautifully.

Tips

If you like an extra-decadent bite I recommend swirling a spoonful of peanut butter into the fudge before spreading it over the brownies. You can also use dark chocolate chips instead of semi-sweet for a richer flavor. I always keep an eye on the marshmallows when broiling because they can go from golden to burnt in seconds!

Ways to Serve

These brownies are fantastic as a dessert centerpiece or packed into lunchboxes for a sweet surprise. I love serving them slightly warm with a scoop of vanilla ice cream or even chilled for a firmer texture. They also make a great edible gift just wrap them individually and tie with ribbon!

Frequently Asked Questions

Can I make Marshmallow Brownies with Fudge ahead of time?

Yes absolutely! I often make them a day in advance and they stay moist and delicious for several days when stored in an airtight container.

Can I freeze Marshmallow Brownies with Fudge?

You can freeze them but I recommend doing so before adding the marshmallows as they can become sticky when thawed.

How do I toast the marshmallows safely for Marshmallow Brownies with Fudge?

If using the broiler just place the pan on the top rack and watch closely or you can use a handheld kitchen torch for more control.

See You in the Kitchen

I hope you give these marshmallow brownies with fudge a try! They’re one of those simple but irresistible recipes that people always ask me to make again and again. Let me know how they turn out and don’t forget to save this one for your next chocolate craving.

Happy Cooking!

Print