Fluffernutter Cookies Recipe
Introduction
Fluffernutter cookies are a delightful twist on the classic peanut butter and marshmallow combo, baked into soft, sweet, and slightly crunchy treats. These cookies hide a gooey marshmallow center that gives every bite a fun surprise. Perfect for peanut butter lovers looking for a nostalgic dessert.

Ingredients
- 1 3/4 cup All-Purpose Flour
- 1 tsp Baking Soda
- 1/2 tsp Salt
- 1/2 cup Creamy Peanut Butter
- 1/2 cup Unsalted Butter (room temperature)
- 1/2 cup Granulated Sugar, plus additional 1/4 cup for coating the cookies
- 1/2 cup Light Brown Sugar
- 1 Large Egg
- 1 tsp Vanilla Extract
- 1 cup Marshmallow Fluff (or 5-6 mini marshmallows per cookie)
Instructions
- Step 1: Adjust your oven rack to the second level mark (just above center), preheat the oven to 350ºF, and line two baking sheets with parchment paper. Set aside.
- Step 2: In a small bowl, whisk together the all-purpose flour, baking soda, and salt. Set aside.
- Step 3: In a large mixing bowl, beat together the peanut butter and unsalted butter until well blended. Add the granulated sugar and light brown sugar, mixing until smooth and combined.
- Step 4: Add the egg and vanilla extract to the peanut butter mixture and mix until fully incorporated.
- Step 5: Gradually add the whisked dry ingredients to the wet mixture and stir until just combined. Avoid overmixing.
- Step 6: Using a 2-tablespoon cookie scoop, portion out a ball of dough and place it onto a prepared baking sheet. Flatten the dough gently into a round disc about 3 inches in diameter.
- Step 7: Using a 1-tablespoon scoop, place a small amount of marshmallow fluff (or 5-6 mini marshmallows) in the center of the dough disc. Carefully fold the dough over the marshmallow and reshape it into a ball, sealing the fluff inside.
- Step 8: Roll the cookie dough ball in the additional 1/4 cup granulated sugar if desired, then place it back on the baking sheet. Repeat with remaining dough. You should get about 6 cookies per sheet.
- Step 9: Bake for 10-12 minutes. The cookies will spread during baking; if you prefer smaller cookies, gently reshape them with a large round cookie cutter immediately after removing from the oven.
- Step 10: Let the cookies cool on the baking sheets for 5-10 minutes before transferring them to a wire rack to cool completely.
Tips & Variations
- For best results, scoop the cookie dough balls first, flatten them, add the marshmallow fluff, then reform into balls to avoid mess.
- Substitute marshmallow fluff with 5-6 mini marshmallows for a similar gooey center.
- Rolling cookies in granulated sugar before baking adds a slight crunch and extra sweetness.
- Use creamy peanut butter for a smooth texture; crunchy peanut butter may alter the cookie’s consistency.
Storage
Store cookies in a well-sealed container at room temperature for up to 5 days. You can also freeze them in an airtight container or freezer bag for up to 3 months. To thaw, leave the cookies at room temperature in their container for 1-3 hours before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use crunchy peanut butter instead of creamy?
Yes, you can use crunchy peanut butter, but it may change the texture of the cookies slightly, making them a bit more textured rather than smooth.
What is marshmallow fluff and can I substitute it?
Marshmallow fluff, also called marshmallow creme, is a sweet, spreadable marshmallow paste. You can substitute with 5-6 mini marshmallows per cookie if fluff isn’t available.
PrintFluffernutter Cookies Recipe
Delightfully soft and chewy Fluffernutter Cookies featuring a perfect blend of peanut butter and marshmallow fluff inside a sweet, sugar-coated dough. These cookies are easy to make, baked to golden perfection, and offer a nostalgic flavor that combines rich peanut butter with gooey marshmallow for a comforting treat.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Total Time: 27 minutes
- Yield: 12 cookies 1x
- Category: Dessert, Cookies
- Method: Baking
- Cuisine: American
Ingredients
Dry Ingredients
- 1 3/4 cup All-Purpose Flour
- 1 tsp Baking Soda
- 1/2 tsp Salt
Wet Ingredients
- 1/2 cup Creamy Peanut Butter
- 1/2 cup Unsalted Butter (room temperature)
- 1/2 cup Granulated Sugar
- 1/2 cup Light Brown Sugar
- 1 Large Egg
- 1 tsp Vanilla Extract
Filling and Coating
- 1 cup Marshmallow Fluff
- Additional 1/4 cup Granulated Sugar (for coating)
Instructions
- Prep the oven and baking sheets: Adjust your oven rack to the second level (just above center) and preheat your oven to 350ºF (175ºC). Line two baking sheets with parchment paper and set aside.
- Mix dry ingredients: In a small bowl, whisk together 1 3/4 cups all-purpose flour, 1 teaspoon baking soda, and 1/2 teaspoon salt until evenly combined. Set this mixture aside for later.
- Cream butter and peanut butter: Using a stand mixer or hand mixer, beat together the 1/2 cup creamy peanut butter and 1/2 cup room temperature unsalted butter until they are nicely blended and smooth.
- Add sugars: Add 1/2 cup granulated sugar and 1/2 cup light brown sugar to the peanut butter mixture. Mix thoroughly until the mixture is well combined and fluffy.
- Incorporate egg and vanilla: Add 1 large egg and 1 teaspoon vanilla extract to the wet ingredients. Mix until the mixture is fully combined and smooth.
- Combine dry and wet ingredients: Gradually add the dry ingredient mixture to the wet ingredients. Mix just until all ingredients are combined and no flour streaks remain. Do not overmix.
- Form cookie discs: Using a 2-tablespoon cookie scoop, scoop out a ball of cookie dough and place it on the prepared baking sheet lined with parchment paper. With your fingers, gently press the ball down to form a round disc approximately 3 inches in diameter.
- Add marshmallow fluff filling: Using a 1-tablespoon cookie scoop, place a small ball of marshmallow fluff (or 5-6 mini marshmallows) in the center of each cookie disc. Carefully fold the dough over the fluff and reform into a ball, ensuring the fluff is enclosed inside.
- Roll in sugar: Roll each dough ball in the additional 1/4 cup granulated sugar to coat. Place the sugar-coated balls back onto the baking sheet, spacing them evenly. Each baking sheet should hold about 6 cookies.
- Bake: Bake the cookies in the preheated oven for 10-12 minutes. They will spread out during baking. If you prefer thicker, smaller cookies, gently press them into shape with a large round cookie cutter immediately after removing from the oven.
- Cool: Let the cookies cool on the baking sheets for 5-10 minutes, then transfer them to a wire rack to cool completely before serving or storing.
- Storage: Store cookies in an airtight container at room temperature for up to 5 days. For longer storage, freeze cookies in a freezer-safe container or bag for up to 3 months. Thaw at room temperature for 1-3 hours before serving.
Notes
- Marshmallow fluff is also called marshmallow creme; alternatively, you can use 5-6 mini marshmallows as a substitute for each tablespoon of fluff.
- For best results, scoop out cookie dough balls first, then flatten them, add marshmallow fluff, and reform the dough around the filling.
- A 2-tablespoon cookie scoop works well for the dough, and a 1-tablespoon scoop is ideal for the marshmallow fluff.
- Rolling cookie dough balls in granulated sugar before baking adds a pleasant sweet crunch but is optional.
- The cookies will spread during baking; you can reshape them right out of the oven with a round cookie cutter if you want a smaller, thicker cookie.
Keywords: Fluffernutter Cookies, peanut butter cookies, marshmallow cookies, soft cookies, baked cookies, sweet snack, dessert

