S’mores Brownies: Gooey, Toasted Perfection in Every Single Bite

My old college roommate, Leo, was the kind of person who lived for midnight snacks and chaos. He once brought over a pan of these brownies during a rainstorm in October, claiming he had perfected the art of indoor camping. One bite changed my entire perspective on dessert; it wasn’t just a brownie, it was a memory of a campfire in a pan.

The magic lies in the aggressive texture contrast. You get the dense, almost truffle-like weight of the chocolate base meeting the airy, stretchy pull of toasted marshmallows. Then, the shards of graham cracker add a buttery, sandy snap that cuts through the richness. It is a sensory collision that keeps you coming back for more.

Unsalted Butter, golden and fragrant when melted, provides the rich fatty base. Use 1/2 cup.

Dark Chocolate Chips, deep cocoa hue with a semi-sweet aroma, create the fudgy core. Use 1 cup.

Granulated Sugar, crystalline and sweet, ensures the edges get that signature crackle. Use 1 cup.

Large Eggs, rich yellow and binding, add structure and a slight lift. Use 2 eggs.

Vanilla Extract, a dark aromatic liquid, rounds out the chocolate notes. Use 1 teaspoon.

Cocoa Powder, fine mahogany powder with a bitter edge, deepens the color. Use 1/2 cup.

All-Purpose Flour, soft white powder, keeps the brownie from becoming a puddle. Use 1/2 cup.

Graham Crackers, honey-brown and crisp, add the essential crunch. Use 6 full sheets.

Mini Marshmallows, snowy white and springy, create the gooey top layer. Use 2 cups.

Let’s Make it Together

1. First, go ahead and preheat your oven to 350°F and line an 8×8 pan with parchment paper so nothing sticks.
2. Melt your butter and chocolate chips together in the microwave in 30-second bursts until it’s a smooth, glossy river.
3. Stir in your sugar and vanilla extract, then beat in the eggs one the batter looks shiny.
4. Sift in your cocoa powder and flour, folding them in gently with a spatula—don’t overmix or it’ll get cakey.
5. Pour that thick chocolate batter into the pan and smooth it out with the back of a spoon.
6. Press your graham cracker pieces into the top of the batter, leaving a little room between them.
7. Spoon your marshmallows over the top, covering the whole surface in a fluffy white blanket.
8. Slide it into the oven for 20-25 minutes, then pop it under the broiler for 60 seconds to brown the tops.

Temperature is everything with this bake. While the base needs a steady 350°F to set, the topping requires the intense, direct heat of the broiler to achieve those charred peaks. If your oven runs hot, rotate the pan halfway through to avoid unevenly cooked edges.

Timing the removal is a delicate dance. Pull the pan out when the center still has a slight wobble; the residual heat will finish the job. Overbaking leads to a dry brownie, which ruins the contrast with the gooey marshmallows.

You’ll notice a pinch of flaky sea salt on top transforms the flavor profile. It cuts through the sugar and highlights the bitterness of the dark chocolate, making the whole experience feel more gourmet.

For a twist, swap the graham crackers for crushed pretzels to introduce a salty, savory element. You could also swirl in a tablespoon of peanut butter into the batter for a salty-sweet hybrid that pairs perfectly with toasted marshmallows.

Store these in an airtight container at room temperature for two days, but the fridge is better for long-term quality. Keep them chilled for up to five days to maintain the fudgy density. For the freezer, wrap individual squares in parchment and foil; they will stay fresh for three months. Warning: do not freeze them uncovered, or the marshmallows will absorb freezer odors and lose their texture.

To reheat, avoid the microwave if you want to preserve the crunch. Pop a square in a toaster oven at 300°F for 5 minutes. This melts the marshmallow again without turning the brownie into a molten soup. If you must use a microwave, use 10-second bursts at 50% power.

• ●Q: Why are my brownies cakey instead of fudgy?A: This usually happens because of over-mixing the batter after adding the flour. Air gets trapped in the dough, creating a cake-like structure. Stir only until the flour streaks disappear to maintain that dense, decadent fudge consistency.
• ●Q: Can I use a different type of marshmallow?A: You can use large marshmallows, but you must slice them into rounds. Mini marshmallows provide more surface area for toasting and create a more uniform, gooey layer across the entire top of the pan.
• ●Q: My marshmallows burnt before the brownies cooked. What happened?A: This occurs if the oven temperature is too high or the broiler is used too early. Always bake the brownies fully first, then use the broiler for the final 60-90 seconds to brown the tops.
• ●Q: How do I stop the graham crackers from sinking?A: Press them firmly but gently into the top of the batter just before baking. If the batter is too thin, they will sink; ensure you’ve followed the flour measurements accurately to keep the base stable.

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Decadent S’mores Brownies: The Ultimate Campfire Dessert

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• Author: adele
• Total Time: 40 minutes
• Yield: 16 squares 1x

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Description

A rich, fudgy chocolate brownie topped with golden-brown toasted marshmallows and crunchy graham cracker pieces for a campfire-inspired treat.

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Ingredients

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• 1/2 cup unsalted butter, melted
• 1 cup dark chocolate chips
• 1 cup granulated sugar
• 2 large eggs
• 1 tsp vanilla extract
• 1/2 cup cocoa powder
• 1/2 cup all-purpose flour
• 6 graham cracker sheets, broken into pieces
• 2 cups mini marshmallows

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Instructions

1. Preheat oven to 350°F and line an 8×8 inch pan with parchment paper.
2. Melt butter and chocolate chips together until smooth.
3. Stir in sugar and vanilla, then beat in eggs one by one.
4. Fold in cocoa powder and flour until just combined.
5. Pour batter into the prepared pan and smooth the top.
6. Press graham cracker pieces into the batter.
7. Top evenly with mini marshmallows.
8. Bake for 20-25 minutes, then broil for 1 minute until marshmallows are toasted.

• Prep Time: 15 minutes
• Cook Time: 25 minutes
• Category: Dessert
• Method: Baking
• Cuisine: American