Description
Fluffernutter Brownies combine rich, fudgy chocolate brownies with creamy peanut butter and fluffy marshmallow swirls, creating a luscious dessert perfect for peanut butter and chocolate lovers. This recipe yields 16 decadent brownies with a gooey, gooey texture and a delightful marbleized top.
Ingredients
Brownie Batter
- 1 cup unsalted butter
- 1 cup granulated sugar
- 1 cup brown sugar
- 3 large eggs
- 2 teaspoons vanilla extract
- 1 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- 1/2 teaspoon salt
Swirl Toppings
- 3/4 cup marshmallow fluff
- 3/4 cup creamy peanut butter
- 1/2 cup chocolate chips or chunks (optional)
Instructions
- Preheat and Prepare Pan: Preheat your oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper to ensure easy removal of the brownies.
- Melt Butter: Melt the butter in a saucepan or microwave-safe bowl then allow it to cool slightly to avoid scrambling the eggs in the next step.
- Mix Sugars: Whisk the granulated sugar and brown sugar into the melted butter until the mixture is smooth and well combined, ensuring even sweetness.
- Add Eggs and Vanilla: Beat in the eggs one at a time along with the vanilla extract until the batter becomes glossy and slightly thickened.
- Incorporate Dry Ingredients: Stir in the unsweetened cocoa powder, all-purpose flour, and salt just until combined, taking care not to overmix, which can cause tough brownies.
- Layer Batter: Pour half of the brownie batter evenly into the prepared pan, spreading it gently to corners.
- Add Swirls: Drop spoonfuls of creamy peanut butter and marshmallow fluff over the batter in scattered dollops.
- Swirl Mixture: Using a knife or skewer, swirl the peanut butter and marshmallow fluff gently into the batter to create a marbled effect.
- Add Remaining Batter: Pour the remaining brownie batter over the swirled layer, smoothing it out evenly.
- Repeat Swirl: Optionally drop additional peanut butter and marshmallow fluff dollops on top and swirl again for extra flavor and visual appeal.
- Bake: Bake in the preheated oven for 28–32 minutes, or until a toothpick inserted near the center comes out with a few moist crumbs but not wet batter.
- Cool and Serve: Allow the brownies to cool completely in the pan before slicing into 16 squares and serving to enjoy the perfect gooey texture.
Notes
- Do not overmix the batter to keep brownies tender and fudgy.
- If you prefer extra chocolaty brownies, fold in 1/2 cup chocolate chips into the batter before baking.
- Line the baking pan with parchment paper with an overhang for easy removal of the entire brownie slab.
- Make sure the melted butter is slightly cooled before adding eggs to prevent curdling.
- Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.