There is something instantly comforting about a cookie that tastes like peanut butter, marshmallow, and pure childhood joy all in one bite. These Soft and Chewy Fluffernutter Cookies bake up with golden edges, tender centers, and little pockets of gooey sweetness that make them impossible to forget.

What I love most about this cookie is how it balances nostalgia with bakery-style texture. The peanut butter brings richness, the marshmallow creme adds that signature fluffernutter character, and every bite feels soft, chewy, and just a little extra special.

Why You’ll Love This Soft and Chewy Fluffernutter Cookies

These cookies are the kind of treat that disappear fast from the cooling rack. They are easy enough for a casual baking day, but unique enough to stand out on a dessert table or holiday tray.

You will love how soft the centers stay, how the peanut butter flavor comes through without being too heavy, and how the marshmallow melts into creamy little pockets throughout the dough. They are also a great make-ahead dessert because the dough chills beautifully and the baked cookies stay tender for days.

What Makes Fluffernutter Cookies So Soft and Chewy?

The secret comes from a few simple things working together. Peanut butter adds moisture and richness, brown sugar helps create a softer texture, and marshmallow creme brings a light, gooey finish that keeps the cookies from feeling dry.

A slightly underbaked center is also part of the magic. When you pull the cookies out just as the edges set, they finish baking on the pan and stay perfectly chewy once cooled.

Ingredients for the Soft and Chewy Fluffernutter Cookies

Each ingredient plays an important role in building the flavor and texture of these cookies, so this is one of those recipes where every addition truly matters.

Butter
Butter gives the cookies richness and helps create those lightly crisp edges.

Creamy peanut butter
Peanut butter is the heart of the recipe, adding nutty flavor, moisture, and that classic fluffernutter taste.

Brown sugar
Brown sugar keeps the cookies soft and adds a deeper caramel-like sweetness.

Granulated sugar
This sweetens the dough and helps the cookies spread just enough in the oven.

Eggs
Eggs bind the dough together and support the soft, chewy texture.

Vanilla extract
Vanilla rounds out the peanut butter flavor and adds warmth.

All-purpose flour
Flour gives the cookies structure so they hold their shape while still staying tender.

Baking soda
Baking soda helps the cookies rise slightly and keeps them from becoming too dense.

Salt
A little salt balances the sweetness and makes the peanut butter flavor pop.

Marshmallow creme
This gives the cookies their signature fluffernutter personality with soft, gooey swirls.

Peanut butter chips
Peanut butter chips add extra bursts of sweet peanut butter flavor in every bite.

How To Make the Soft and Chewy Fluffernutter Cookies

This cookie dough comes together in a very simple way, but a few small details make all the difference when it comes to achieving that soft center and gooey marshmallow finish.

Step 1: Cream the Butter, Peanut Butter, and Sugars

Beat the butter, peanut butter, brown sugar, and granulated sugar together until the mixture looks smooth and fluffy. This creates the base of the dough and helps the cookies bake up light instead of heavy.

Step 2: Add the Eggs and Vanilla

Mix in the eggs one at a time, then stir in the vanilla extract. Scrape down the bowl so everything blends evenly.

Step 3: Combine the Dry Ingredients

In a separate bowl, whisk together the flour, baking soda, and salt. This helps distribute the leavening evenly through the dough.

Step 4: Finish the Dough

Add the dry ingredients to the wet mixture and mix just until combined. Fold in the peanut butter chips, being careful not to overmix.

Step 5: Swirl in the Marshmallow Creme

Drop small spoonfuls of marshmallow creme into the dough and gently fold a few times. You want visible ribbons and pockets rather than fully mixing it in.

Step 6: Chill the Dough

Cover the dough and chill it for at least 30 minutes. This helps control spreading and gives the cookies a thicker, chewier texture.

Step 7: Scoop and Bake

Scoop the dough onto a parchment-lined baking sheet, leaving room between each cookie. Bake until the edges are lightly golden and the centers still look a little soft.

Step 8: Cool and Enjoy

Let the cookies rest on the pan for several minutes before moving them to a wire rack. This finishes the baking gently and keeps the centers soft.

Serving and Storing Soft and Chewy Fluffernutter Cookies

These cookies are rich, satisfying, and ideal for sharing. This recipe makes about 24 cookies, which usually feeds 8 to 10 people depending on how generously you serve them.

Serve them slightly warm if you want the marshmallow pockets to feel extra gooey. They are also wonderful at room temperature with coffee, milk, or a scoop of vanilla ice cream for dessert.

To store, keep the cookies in an airtight container at room temperature for up to 4 days. For longer storage, freeze them in a sealed container or freezer bag for up to 2 months. You can also freeze the dough balls and bake straight from the freezer with an extra minute or two of baking time.

What to Serve With Soft and Chewy Fluffernutter Cookies?

Cold Milk

A glass of cold milk is the classic pairing and balances the sweetness beautifully.

Hot Coffee

Coffee brings a slightly bitter contrast that works so well with peanut butter and marshmallow.

Vanilla Ice Cream

A scoop of vanilla ice cream turns these cookies into an easy plated dessert.

Hot Chocolate

For a cozy treat, serve the cookies with hot chocolate and let the marshmallow theme carry through.

Fresh Fruit

Strawberries or banana slices add a fresh contrast and pair naturally with peanut butter flavors.

If you love these Soft and Chewy Fluffernutter Cookies, you might also enjoy a few more sweet favorites from Nora Nosh:

Jimmy Carter’s Grandmother’s Peanut Butter Cookies for a classic old-fashioned peanut butter cookie.
Banana Bread Cookies when you want a soft cookie with cozy banana flavor.
Whipped Shortbread Cookies Recipe for a buttery, delicate cookie that melts in your mouth.
No-Bake Preacher Cookies if you need a fast cookie-style treat without turning on the oven.