Fluffernutter Cookies
Welcome to Sugar, Spice & Glitter! Please note, this post may contain affiliate links. For more details, see our Full Disclosure.
Soft and chewy Fluffernutter Cookies are a new way to enjoy the classic and nostalgic flavors of a fluffernutter sandwich, perfect for cookie exchanges, bake sales or just a sweet after-school treat.
Peanut Butter Marshmallow Cookies Recipe
Today’s Fluffernutter Cookies feature a rich, buttery peanut butter cookie with an ooey-gooey, melted marshmallow center inspired by the flavors of a classic Fluffernutter sandwich, a New England lunch box tradition that first gained recognition during WWI and is still enjoyed as a nostalgic, simple and comforting treat today.
Whether you grew up enjoying fluffernutter sandwiches or have never heard of them before today, you are going to love these decadent peanut butter marshmallow fluff cookies.
They are tender and slightly chewy with lightly crisped edges and little pockets of sugary sweetness from the melted marshmallows. The gentle hits of cinnamon and vanilla helps round out the flavor profile of caramelized brown sugar, rich peanuts and saccharine-sweet marshmallows.
And while only Marshmallow Fluff can be used to make a real Fluffernutter sandwich, feel free to use whichever marshmallow cream you prefer or is available to you to make these cookies. (Just don’t tell any die-hard fluffernutter fans.)
Fluffernutter Cookie Recipe Variations:
- Salted Peanut Crunch: Fold in a few tablespoons of finely chopped salted peanuts.
- Chocolate Chip Fluffernutters: Add 1/2 cup of mini chocolate chips to the cookie dough.
- Cinnamon Sugar Garnish: Sprinkle the tops of each cookie with a light dusting of cinnamon sugar before baking.
- Marshmallows instead of Fluff: Use regular marshmallows instead of marshmallow fluff, if desired.
- Brown Sugar Toffee Fluffernutters: Stir a small handful of finely chopped toffee bits into the dough for caramel crunch.
- Roasted Banana Fluffernutters: Mash half of a very ripe roasted banana and reduce the peanut butter by two tablespoons. The banana adds moisture and a subtle nostalgic sweetness.
- Salted Pretzel Crunch: Fold in a quarter cup of finely crushed pretzels to add a salty, crisp texture.
Fluffernutter Cookie FAQs
Why do I need to chill the cookie dough? Chilling helps the dough firm up so it can hold the marshmallow center during baking, preventing the cookies from spreading too quickly in the oven.
Can I use natural peanut butter? I didn’t develop this recipe using natural peanut butter and the higher oil content may cause the dough to spread too much; you will have to tweak the recipe by adding additional flour if using natural peanut butter.
Can I freeze the dough? Yes, scoop and fill the dough balls, then freeze on a tray until firm. Transfer to a bag and freeze for up to 2 months.
When ready to enjoy, you can bake from frozen, adding two to three extra minutes to the cooking time.
How to store fluffernutter cookies: These peanut butter marshmallow-stuffed cookies can be kept in an airtight container at room temperature for 3-4 days, or refrigerated for up to a week.
To freeze, arrange in a single layer on a sheet pan and freeze until solid before transferring to a zip-top freezer bag or your favorite freezer containers. (This set of freezer containers is a crazy bargain.) They can be kept frozen for up to 2 months. Thaw for at least 30 minutes before serving.
More Recipes Using Marshmallow Fluff
- Homemade Snickers Recipe
- Lemon Meringue Cookie Cups
- Homemade Chocolate Twinkies
- Snickers Layer Cake
- Mississippi Mud Cake from Taste of Home
- Fluffernutter Brownies from Fab Everyday
Fluffernutter Cookie Ingredients
- Butter, softened at room temperature
- Smooth Peanut Butter
- Brown Sugar
- Egg
- Vanilla Extract
- Cinnamon
- All-Purpose Flour
- Baking Soda
- Salt
- Marshmallow Fluff
Scroll down to the printable recipe card for full measurements.
Tip: Lightly dampen your fingers before shaping the dough to prevent sticking and allow you to close the marshmallow center cleanly.
Kitchen Tools You May Find Helpful
- Measuring Cups and Spoons
- Cookie Sheets
- Silicone Baking Mats
- Mixing Bowl
- Electric mixer <– this is a great hand mixer if you don’t want to make the investment into a stand mixer
- Cookie Scoop
- Saucepan
- Whisk
How to Make Fluffernutter Cookies
In a large bowl, beat together the butter, peanut butter and brown sugar until well combined. (If using a stand mixer, use the paddle attachment.)
Beat in the egg and vanilla until incorporated. Set aside.
In a small separate bowl, stir together the flour, baking soda, salt and cinnamon.
Slowly beat the flour mixture into the peanut butter mixture.
Cover the bowl with plastic wrap and refrigerate for 30 minutes, or overnight.
Preheat the oven to 375 degrees. Line two cookie sheets with parchment paper or silicone baking mats and set aside.
Use a Tablespoon-sized scoop to portion out a Tablespoon of cookie dough into your hand. Press the center of the cookie dough to make a little well in the dough and fill with one teaspoon of marshmallow fluff. Press the cookie dough around the well to cover and encase the marshmallow fluff completely, using a bit more dough, if needed.
(If you find this process too tricky, you can freeze teaspoon-sized balls of marshmallow fluff on a parchment or silicone-lined baking mat before adding to the center of the cookies; be sure to spritz the teaspoon with a bit of oil to help the marshmallow fluff slide off easily.)
Arrange the marshmallow-filled cookie balls on the prepared cookie sheets, at least 3-4″ apart.
Bake for 12-15 minutes until the cookies begin to lightly brown around the edges.
Allow the cookies to cool on the cookie sheets for about 5 minutes before transferring to cooling racks.
Pin this Rich & Gooey Fluffernutter Peanut Butter cookie recipe for an indulgent treat:
Grab your free printable recipe card for our fluffernutter peanut butter marshmallow cookies recipe:
Want to Save This Recipe?
Enter your email & I'll send it to your inbox. Plus, get great new recipes from me every week!
By submitting this form, you consent to receive emails from Sugar, Spice and Glitter.
Fluffernutter Peanut Butter Cookies
Fluffernutter Cookies feature a rich, buttery peanut butter cookie with an ooey-gooey, melted marshmallow center inspired by the flavors of a classic Fluffernutter sandwich.
Ingredients
- 1/2 cup Butter, softened at room temperature
- 1 cup Smooth Peanut Butter
- 1 1/3 cup Brown Sugar
- 1 Egg
- 2 teaspoons Vanilla Extract
- 1/4 teaspoon Cinnamon
- 1 cup All-Purpose Flour
- 1 teaspoon Baking Soda
- 1/4 teaspoon Salt
- 1 Jar Marshmallow Fluff
Instructions
- In a large bowl, beat together the butter, peanut butter and brown sugar until well combined. (If using a stand mixer, use the paddle attachment.)
- Beat in the egg and vanilla until incorporated. Set aside.
- In a small separate bowl, stir together the flour, baking soda, salt and cinnamon.
- Slowly beat the flour mixture into the peanut butter mixture.
- Cover the bowl with plastic wrap and refrigerate for 30 minutes, or overnight.
- Preheat the oven to 375 degrees. Line two cookie sheets with parchment paper or silicone baking mats and set aside.
- Use a Tablespoon-sized scoop to portion out a Tablespoon of cookie dough into your hand. Press the center of the cookie dough to make a little well in the dough and fill with one teaspoon of marshmallow fluff. Press the cookie dough around the well to cover and encase the marshmallow fluff completely, using a bit more dough, if needed.
- (If you find this process too tricky, you can freeze teaspoon-sized balls of marshmallow fluff on a parchment or silicone-lined baking mat before adding to the center of the cookies; be sure to spritz the teaspoon with a bit of oil to help the marshmallow fluff slide off easily.)
- Arrange the marshmallow-filled cookie balls on the prepared cookie sheets, at least 3-4" apart.
- Bake for 12-15 minutes until the cookies begin to lightly brown around the edges.
- Allow the cookies to cool on the cookie sheets for about 5 minutes before transferring to cooling racks.
Recommended Products
As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.
Nutrition Information:
Yield:
22Serving Size:
1Amount Per Serving: Calories: 216Total Fat: 11gSaturated Fat: 3gUnsaturated Fat: 7gCholesterol: 21mgSodium: 192mgCarbohydrates: 27gFiber: 2gSugar: 16gProtein: 4g
Sugar, Spice and Glitter uses an auto-generate nutrition calculator. Nutrition information isn’t always accurate unless analyzed in a scientific lab, so these should be considered more of a guideline than medical information.
I hope your family loves these easy peanut butter marshmallow fluff cookies as much as mine does!
For more scrumptious cookies, check out our full cookie recipe collection here:
For more decadent desserts, check out our full dessert recipe collection here:
