Description
These gooey, sweet Fluffernutter Bars combine creamy peanut butter, marshmallow fluff, and crushed Nutter Butter cookies into a nostalgic, crowd-pleasing treat. Perfectly chewy and rich with classic flavor.
Ingredients
Units
Scale
- 1/2 cup butter, room temperature
- 1/2 cup creamy peanut butter
- 3/4 cup light brown sugar
- 1 egg, room temperature
- 1 tablespoon vanilla extract
- 1 1/2 cups all-purpose flour
- 1/2 teaspoon salt
- 1 cup marshmallow fluff
- 6–8 Nutter Butter sandwich cookies, roughly crushed
Instructions
- Preheat oven to 350°F (175°C). Grease or line an 8×8-inch baking dish with parchment paper.
- In a large mixing bowl, cream together the butter, peanut butter, and brown sugar until light and fluffy.
- Add the egg and vanilla, mixing until fully incorporated.
- Stir in the flour and salt until a soft dough forms.
- Spread 2/3 of the dough evenly in the bottom of the prepared pan.
- Gently spread the marshmallow fluff over the dough layer (it’s okay if it doesn’t fully reach the edges).
- Drop spoonfuls of the remaining dough on top and gently press to cover most of the fluff.
- Top with crushed Nutter Butter cookies, pressing them lightly into the dough.
- Bake for 25–30 minutes, or until the top is golden and set.
- Allow to cool completely in the pan before cutting into bars.
Notes
- Wet your fingers or use parchment to press down the sticky dough easily.
- For neater slices, chill the bars before cutting.
- Store in an airtight container for up to 4 days.
Nutrition
- Serving Size: 1 bar
- Calories: 280
- Sugar: 18g
- Sodium: 180mg
- Fat: 15g
- Saturated Fat: 6g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 30mg