Fudgy Layered Peanut Butter S'more Brownies
These Peanut Butter S’more Brownies have a layer of graham cracker base, a fudgy brownie that's stuffed with creamy peanut butter, and topped with gooey toasted marshmallow fluff. A perfect easy summer dessert that doesn't require a campfire!
Servings: 9 Brownies
Ingredients
- 4-5 whole graham cracker sheets
- 12 tbsp unsalted butter, melted (170 g)
- 2 eggs, room temperature
- 1 cup granulated white sugar (200 g)
- 1/3 cup dark brown sugar, packed (67 g)
- 1 tbsp vanilla extract
- 1 tsp salt
- 3/4 cup cocoa powder, (75 g)
- 3/4 cup all purpose flour, spooned and leveled (94 g)
- 1 cup creamy peanut butter, melted (250 g)
- 2 cups marshmallow fluff
Instructions
Peanut Butter Layer:
- Line an 8x8-inch pan with parchment or wax paper. Melt the peanut butter in the microwave until smooth (30–45 seconds). Pour the melted peanut butter into the lined pan and spread into an even layer. Freeze for at least 1 hour, or until completely solid and easy to lift.
Brownie Batter:
- Preheat the oven to 350°F. Line a 8x8-inch baking pan with parchment paper, allowing overhang on the sides for easy removal.
- In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth. Add eggs, vanilla extract, and salt. Whisk until fully combined.
- Add in the cocoa powder and flour. Stir with a spatula until just combined (don’t over mix).
- Place whole graham cracker sheets in a single layer on the bottom of the pan (breaking to fit if needed). Spread half of the brownie batter over the graham crackers.
- Lift the frozen peanut butter slab from the freezer and carefully place it over the brownie batter.
- Spread the remaining brownie batter over the top, covering the PB layer completely.
- Bake at 350°F (175°C) for 30–35 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
Marshmallow Fluff:
- Immediately after taking the brownies out of the oven, spoon 9 heaping spoon fulls of marshmallow fluff evenly on top of the warm brownies, gently spread over brownies and broil for 2-3 minutes (see note!!)
Notes
- For the Marshmallow fluff, I have the best luck when I let the marshmallow fluff sit on top of the brownies for about 15-30 seconds before I start to spread it all around on top, the heat from the brownies helps the fluff spread.
- When you broil, KEEP AN EYE ON IT! It can go from delicious to disaster in seconds.
- Although homemade brownies are the best, if you're in a pinch, you can use a box of brownie mix (making the brownies as instructed on the box).
- Serving Size: You can cut into 9 large brownie squares of 16 smaller squares, you choose!