Soft and Chewy Fluffernutter Cookies are the kind of treat that disappears fast from the cookie jar. They have that nostalgic peanut butter and marshmallow flavor people already love, but in cookie form they feel even more special. Each bite is soft in the center, lightly golden around the edges, and packed with cozy sweetness.

What makes these cookies so fun is the mix of familiar comfort and playful texture. The peanut butter brings richness, the marshmallow creme adds that signature fluffernutter character, and the brown sugar helps create a cookie that stays tender long after it cools. These are perfect for bake sales, weekend baking, or anytime you want a dessert that feels simple but memorable.

Why You’ll Love This Soft and Chewy Fluffernutter Cookies

These cookies have everything a peanut butter cookie fan could want, with a little extra magic folded in. The texture is soft and thick instead of dry or crumbly, and the marshmallow flavor gives them a sweeter, creamier finish than classic peanut butter cookies. They are easy to make with pantry basics, which means you do not need anything complicated to get a batch in the oven.

They also bake up beautifully for sharing. The flavor feels nostalgic, the centers stay chewy, and the dough is easy to portion. Whether you serve them with milk, coffee, or pack them up for a party, they always feel like a treat worth reaching for.

Why Do Fluffernutter Cookies Stay So Soft and Chewy?

The secret comes down to a few simple ingredients working together. Peanut butter adds moisture and richness, brown sugar helps hold onto softness, and marshmallow creme gives the dough a pillowy sweetness that keeps the cookies from feeling dry. Pulling them from the oven when the centers still look slightly underdone also helps preserve that bakery-style chew.

A soft cookie also depends on balance. Too much flour can make them heavy, while the right amount gives them structure without taking away tenderness. Once you get that mix right, you end up with cookies that taste just as good the next day as they do while still a little warm.

Ingredients for the Soft and Chewy Fluffernutter Cookies

These cookies use a short list of familiar ingredients, but each one plays an important part in the final texture and flavor. The peanut butter gives them their signature richness, while the marshmallow creme brings sweetness and that classic fluffernutter personality. A mix of sugars helps create crisp edges with a soft middle, and the dry ingredients keep everything balanced so the cookies hold their shape without turning cakey.

Ingredients

All-purpose flour keeps the dough sturdy enough to hold its shape while still baking up tender.
Baking soda helps the cookies rise slightly and keeps the centers soft instead of dense.
Salt balances the sweetness and deepens the peanut butter flavor.
Unsalted butter adds richness and helps create a smooth, flavorful dough.
Creamy peanut butter gives the cookies their classic nuttiness and soft texture.
Brown sugar adds moisture and a warm caramel note that keeps the cookies chewy.
Granulated sugar helps the edges set and adds sweetness without making the dough too heavy.
Large egg binds the dough and supports the soft, thick texture.
Vanilla extract rounds out the flavors and makes the cookies taste fuller.
Marshmallow creme gives the dough its fluffernutter flavor and a subtle gooeyness.
Mini marshmallows create little pockets of sweetness throughout the cookies.
Peanut butter chips add extra peanut butter flavor and make every bite more satisfying.

Soft and Chewy Fluffernutter Cookies (1)

How To Make the Soft and Chewy Fluffernutter Cookies

A great batch of fluffernutter cookies starts with a dough that is creamy, thick, and easy to scoop. The method is straightforward, but a few small details make a big difference. Mixing the wet ingredients until smooth, measuring the flour carefully, and not overbaking will help you get that soft and chewy texture every time.

Step 1: Prep the Oven and Baking Sheets

Preheat your oven to 350°F. Line two baking sheets with parchment paper so the cookies bake evenly and release easily. This small step also helps prevent the bottoms from getting too dark.

Step 2: Mix the Dry Ingredients

In a medium bowl, whisk together the flour, baking soda, and salt. This helps distribute the leavening evenly so the cookies bake with a consistent texture from batch to batch.

Step 3: Cream the Butter, Peanut Butter, and Sugars

In a large bowl, beat the butter, peanut butter, brown sugar, and granulated sugar until the mixture looks smooth and fluffy. This step builds the base of the dough and gives the cookies their rich flavor and soft bite.

Step 4: Add the Egg, Vanilla, and Marshmallow Creme

Mix in the egg and vanilla extract, then beat in the marshmallow creme until fully combined. The dough may look a little sticky at this point, which is exactly what you want.

Step 5: Add the Dry Ingredients

Gradually stir the flour mixture into the wet ingredients until no dry streaks remain. Avoid overmixing here so the cookies stay tender once baked.

Step 6: Fold in the Mix-Ins

Gently fold in the mini marshmallows and peanut butter chips. This is where the dough starts to feel like a true fluffernutter cookie, with little bursts of sweetness and extra peanut butter in every scoop.

Step 7: Scoop and Bake

Scoop the dough onto the prepared baking sheets, leaving space between each cookie for spreading. Bake for 9 to 11 minutes, or until the edges are lightly set and the centers still look soft.

Step 8: Cool for the Best Texture

Let the cookies rest on the baking sheet for 5 minutes before transferring them to a wire rack. They continue to set as they cool, which helps keep the centers soft while the edges stay just firm enough.

How to Serve and Store Soft and Chewy Fluffernutter Cookies

This recipe makes about 18 cookies, which is enough to feed 6 to 9 people depending on how generously you serve them. They are especially good slightly warm, when the marshmallow flavor feels extra cozy and the peanut butter chips are still a little soft. For dessert, pair them with a cold glass of milk, hot chocolate, or coffee.

To store them, keep the cooled cookies in an airtight container at room temperature for up to 4 days. If you want to keep them longer, refrigerate them for up to a week, though they taste best after coming back to room temperature. You can also freeze the baked cookies or the dough for future baking, which makes them a handy make-ahead dessert for busy weeks.

What to Serve With Soft and Chewy Fluffernutter Cookies

Cold Milk

A glass of cold milk is the classic choice. It balances the sweetness and makes the peanut butter flavor feel even richer.

Hot Coffee

Coffee is a great match when you want something a little less sweet alongside the cookies. The roasted bitterness works beautifully with the marshmallow notes.

Vanilla Ice Cream

Serve these cookies with a scoop of vanilla ice cream for an easy dessert that feels a little more special. The cool creaminess makes the chewy texture stand out.

Hot Chocolate

If you are leaning into comfort food, hot chocolate makes these cookies feel extra cozy. It is especially good during colder months or holiday baking season.

Fresh Strawberries

Fresh berries add a bright contrast to the rich cookie base. Strawberries in particular pair nicely with peanut butter and help lighten the plate.

Peanut Butter Drizzle

For a dessert platter or party tray, a light peanut butter drizzle over the cookies makes them look bakery-worthy and adds even more flavor without much effort.

If you love the sweet, nostalgic flavor of these Soft and Chewy Fluffernutter Cookies, there are plenty of other cookie favorites worth baking next. For a classic that always delivers, try Chocolate Chip Cookies. If you want to keep the peanut butter theme going, Thick and Chewy Peanut Butter Cookies are a natural next choice.

You can also branch out with something festive and fun like Reindeer Chow for a holiday-style sweet snack, or make a batch of Cherry Topped Coconut Macaroons when you want a chewy cookie with a different kind of texture. Each one brings its own personality to the dessert table, but they all have that homemade charm that makes people come back for seconds.

Save This Recipe For Later

📌 Save this recipe to your Pinterest dessert board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you make them extra marshmallowy, add more peanut butter chips, or enjoy them just as they are? I always love hearing the little ways people make a recipe feel like their own.

If you want even more sweet inspiration, explore beautifully curated recipes on Mia Recipes on Pinterest and discover another dessert to bake next.