Soft and Chewy Fluffernutter Cookies

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Soft and Chewy Fluffernutter Cookies bring together everything people love about nostalgic peanut butter and marshmallow sandwiches in one irresistible dessert. Every bite is packed with creamy peanut butter flavor, gooey marshmallow pockets, and a perfectly soft cookie texture that stays chewy for days. These cookies are rich without feeling too heavy, making them ideal for after-school treats, holiday trays, bake sales, or cozy evenings with a glass of milk.

The golden edges create a slight crispness while the centers remain thick, tender, and melt-in-your-mouth soft. Peanut butter chips scattered throughout add extra sweetness and texture, while marshmallow creme creates gooey ribbons that make these cookies stand out from ordinary peanut butter cookies. Whether you are baking for family gatherings or simply craving a comforting homemade dessert, these cookies are guaranteed to disappear quickly.

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Why You’ll Love This Soft and Chewy Fluffernutter Cookies Recipe

These cookies are incredibly easy to make and deliver bakery-style results with minimal effort. The combination of peanut butter and marshmallow creates a nostalgic flavor that appeals to both kids and adults. The dough comes together quickly using simple pantry staples, making this recipe perfect for last-minute baking.

Another reason these cookies shine is their texture. They stay soft and chewy long after baking, which makes them excellent for storing ahead of time. Peanut butter chips add extra richness while marshmallow creme creates pockets of gooey sweetness throughout the cookies. The recipe is also versatile enough to customize with chocolate chips, chopped peanuts, or even a drizzle of melted chocolate.

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Preparation Phase & Tools to Use

Having the right tools ready before you start baking helps the entire process run smoothly and ensures consistent results.

• Mixing Bowls: Large and medium bowls help separate dry and wet ingredients efficiently while keeping the workspace organized.
• Electric Mixer: A hand mixer or stand mixer creams the butter, sugars, and peanut butter properly, creating a lighter cookie texture.
• Measuring Cups and Spoons: Accurate measurements are essential for maintaining the soft and chewy consistency.
• Rubber Spatula: Useful for scraping down the sides of the bowl and folding in marshmallow creme gently.
• Cookie Scoop: Helps portion evenly sized cookies so they bake uniformly.
• Baking Sheets: Heavy-duty baking sheets promote even baking and prevent over-browning.
• Parchment Paper: Prevents sticking and keeps cleanup simple.
• Cooling Rack: Allows cookies to cool properly without trapping steam underneath.

Each tool plays an important role in achieving perfectly baked cookies with soft centers and golden edges.

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Preparation Tips

For the best Soft and Chewy Fluffernutter Cookies, make sure your butter is softened to room temperature before mixing. This helps create a smooth, creamy dough and improves the final texture of the cookies. Avoid overmixing the dough once the flour is added, as this can make the cookies dense instead of soft and tender. Chilling the dough for at least 30 minutes is highly recommended because it prevents excessive spreading and enhances the flavor. When adding marshmallow creme, gently swirl it into the dough rather than fully mixing it in so you can maintain gooey marshmallow pockets throughout each cookie. Baking the cookies slightly underdone is another key step, since they continue to set as they cool and stay wonderfully chewy.

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Ingredients for Soft and Chewy Fluffernutter Cookies

Creating perfectly soft and chewy cookies starts with high-quality ingredients that work together to produce rich peanut butter flavor, gooey marshmallow pockets, and a tender texture.

Dry Ingredients

• 2 1/4 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1 tablespoon cornstarch

Wet Ingredients

• 1 cup unsalted butter, softened
• 1 cup creamy peanut butter
• 1 cup light brown sugar, packed
• 1/2 cup granulated sugar
• 2 large eggs, room temperature
• 2 teaspoons pure vanilla extract

Mix-Ins and Toppings

• 1 cup peanut butter chips
• 3/4 cup mini marshmallows or marshmallow bits
• 1/2 cup marshmallow creme
• Extra peanut butter chips for topping
• Flaky sea salt for garnish (optional)

Optional Add-Ins

• 1/2 cup chopped roasted peanuts for crunch
• 1/2 cup white chocolate chips
• 1/3 cup crushed graham crackers for extra texture
• Drizzle of melted chocolate after baking

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Step 1: Prepare the Baking Equipment

Preheat your oven to 350°F (175°C). Line two large baking sheets with parchment paper to prevent sticking and encourage even baking. Gather all ingredients before starting so the process moves smoothly. Allow the butter and eggs to come to room temperature, which helps create a smoother dough and more even texture.

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Step 2: Combine the Dry Ingredients

In a medium mixing bowl, whisk together the flour, baking soda, baking powder, salt, and cornstarch. Whisking distributes the leavening agents evenly throughout the flour, helping the cookies bake consistently. Cornstarch is especially important because it contributes to the ultra-soft texture.

Set the bowl aside while preparing the wet ingredients.

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

In a large mixing bowl, use an electric mixer to beat the softened butter, creamy peanut butter, brown sugar, and granulated sugar together for about 2 to 3 minutes. The mixture should look pale, creamy, and fluffy.

This step is essential because properly creaming the butter and sugars incorporates air into the dough, creating a softer and lighter cookie texture. Scrape down the sides of the bowl as needed to ensure everything blends evenly.

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Step 4: Add the Eggs and Vanilla

Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract until fully incorporated.

Using room-temperature eggs helps the ingredients blend smoothly without causing the butter mixture to separate. The vanilla enhances the peanut butter flavor and adds warmth to the overall taste.

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Step 5: Incorporate the Dry Ingredients

Gradually add the dry ingredient mixture into the wet ingredients. Mix on low speed just until no streaks of flour remain.

Avoid overmixing at this stage because too much mixing develops gluten, which can make the cookies dense and tough instead of soft and chewy.

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Step 6: Fold in the Peanut Butter Chips and Marshmallows

Using a rubber spatula, gently fold in the peanut butter chips and mini marshmallows. If using chopped peanuts or white chocolate chips, add them during this step.

The dough should feel thick, creamy, and loaded with mix-ins. Reserve a handful of peanut butter chips to press onto the tops of the cookies before baking for a more bakery-style appearance.

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Step 7: Swirl in the Marshmallow Creme

Drop spoonfuls of marshmallow creme throughout the dough. Use a spatula to lightly swirl it into the mixture without completely blending it.

This creates gooey marshmallow ribbons throughout the cookies and prevents the marshmallow flavor from disappearing into the dough.

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Step 8: Chill the Dough

Cover the bowl tightly with plastic wrap and chill the dough for at least 30 minutes. For even thicker cookies, chill for up to 2 hours.

Chilling helps solidify the fats in the dough, which reduces spreading during baking and intensifies the flavor.

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Step 9: Scoop and Shape the Cookies

Use a medium cookie scoop or tablespoon to portion the dough into evenly sized balls. Place them about 2 inches apart on the prepared baking sheets.

Lightly press a few extra peanut butter chips onto the tops of the dough balls. If desired, add a tiny swirl of marshmallow creme to the center of each cookie for extra visual appeal.

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Step 10: Bake the Cookies

Bake the cookies for 10 to 12 minutes, or until the edges are lightly golden while the centers still appear slightly soft.

Do not overbake. The cookies continue cooking on the hot baking sheet after removal from the oven, which helps maintain their chewy centers.

Rotate the baking sheet halfway through baking for more even browning.

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Step 11: Cool Properly

Allow the cookies to rest on the baking sheet for 5 minutes before transferring them to a wire cooling rack.

This resting time helps the cookies firm up enough to move while still preserving their soft texture. As they cool, the marshmallow pockets become deliciously gooey and the flavors deepen.

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Step 12: Serve and Enjoy

Serve the cookies slightly warm for the ultimate gooey marshmallow experience. Pair them with cold milk, hot chocolate, or coffee for a comforting dessert.

These cookies are perfect for holiday dessert platters, lunchbox treats, bake sales, parties, or cozy weekend baking sessions. Their soft centers, chewy texture, and sweet peanut butter-marshmallow combination make them unforgettable.

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Notes

Soft and Chewy Fluffernutter Cookies are best enjoyed when baked just until the edges are lightly golden and the centers still look slightly underdone. This technique helps preserve their rich, chewy texture after cooling. Because marshmallow creme can become sticky during mixing, lightly greasing your spatula makes swirling it into the dough much easier. If you prefer thicker cookies, refrigerating the dough for longer than 30 minutes will help create taller cookies with less spreading.

Using creamy peanut butter produces the smoothest texture, but natural peanut butter can also work if thoroughly stirred beforehand. Keep in mind that natural peanut butter may slightly alter the consistency of the dough because of its oil separation. For a stronger peanut butter flavor, adding a few tablespoons of powdered peanut butter to the dry ingredients can intensify the taste without affecting the texture too much.

These cookies also freeze exceptionally well, making them ideal for preparing ahead for parties, holidays, or busy weeks. You can freeze both the unbaked dough and fully baked cookies with excellent results.

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Watch Out for These Mistakes While Cooking

Overmixing the Dough

Once the dry ingredients are added, overmixing can develop too much gluten and lead to dense cookies instead of soft and chewy ones. Mix only until the flour disappears.

Skipping the Chilling Step

Warm dough spreads too quickly in the oven, which can create thin cookies. Chilling the dough helps maintain thickness and improves flavor.

Overbaking the Cookies

The cookies may appear slightly underdone when removed from the oven, but they continue to set while cooling. Baking too long can result in dry or crunchy cookies.

Adding Too Much Marshmallow Creme

Excess marshmallow creme may melt excessively and cause the cookies to spread unevenly. Swirl it lightly rather than overloading the dough.

Using Cold Ingredients

Cold butter or eggs do not blend smoothly and can create uneven texture. Room-temperature ingredients help create a more uniform dough.

Crowding the Baking Sheet

Placing cookies too close together may cause them to merge while baking. Leave enough space between each dough ball for proper spreading.

Ignoring Oven Temperature Accuracy

An oven that runs too hot can burn the edges before the centers finish baking. Using an oven thermometer helps ensure consistent results.

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Storage Instructions

Store cooled Soft and Chewy Fluffernutter Cookies in an airtight container at room temperature for up to 5 days. To maintain their soft texture, place a slice of bread inside the container; the cookies absorb moisture from the bread and stay fresher longer.

For longer storage, refrigerate the cookies in a sealed container for up to 1 week. Allow them to come to room temperature before serving for the best flavor and texture.

To freeze baked cookies, place them in a freezer-safe container or zip-top bag with parchment paper between layers. Freeze for up to 3 months. Thaw at room temperature or warm briefly in the microwave for a freshly baked taste.

Unbaked cookie dough can also be frozen. Scoop the dough into balls, freeze them on a tray until firm, then transfer to a freezer bag. Bake directly from frozen by adding an extra 1 to 2 minutes to the baking time.

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Estimated Nutrition

Per Cookie (Approximate Values)

• Calories: 245
• Carbohydrates: 30g
• Protein: 5g
• Fat: 12g
• Saturated Fat: 5g
• Cholesterol: 28mg
• Sodium: 140mg
• Sugar: 20g
• Fiber: 1g

Nutritional values may vary depending on ingredient brands, portion sizes, and optional add-ins used.

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Frequently Asked Questions

Can I use crunchy peanut butter instead of creamy peanut butter?

Yes, crunchy peanut butter works well if you prefer extra texture in the cookies. It adds small peanut pieces throughout the dough while still maintaining the classic peanut butter flavor.

Why did my cookies spread too much?

Cookies often spread excessively when the dough is too warm or the butter is overly softened. Chilling the dough before baking usually solves this problem.

Can I make these cookies without marshmallow creme?

Yes, you can substitute mini marshmallows or marshmallow bits if marshmallow creme is unavailable. The texture may differ slightly, but the flavor will still be delicious.

How do I keep the cookies soft for several days?

Store them in an airtight container with a slice of bread to help maintain moisture and softness.

Can I freeze the dough?

Absolutely. Freezing cookie dough is a great way to prepare ahead. Scoop the dough into portions before freezing for easier baking later.

What type of peanut butter works best?

Regular creamy peanut butter typically gives the most reliable texture. Natural peanut butter can work, but it may alter the consistency slightly.

Can I add chocolate chips?

Yes, chocolate chips pair wonderfully with peanut butter and marshmallow flavors. Milk chocolate, dark chocolate, or white chocolate chips all work well.

How do I know when the cookies are done baking?

The edges should appear lightly golden while the centers still look slightly soft. They will continue setting as they cool on the baking sheet.

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Conclusion

Soft and Chewy Fluffernutter Cookies combine nostalgic flavors with an irresistibly soft texture that makes them perfect for every occasion. The creamy peanut butter, gooey marshmallow swirls, and tender cookie base create a comforting homemade dessert that feels both fun and indulgent. Whether you are baking for holidays, family gatherings, lunchbox treats, or simply satisfying a sweet craving, these cookies deliver bakery-style results with simple ingredients and easy preparation.

Their versatility also makes them a favorite for creative variations, allowing you to add chocolate chips, chopped peanuts, or extra marshmallow for even more flavor. Once you try these soft and chewy cookies fresh from the oven, they are sure to become a regular addition to your dessert rotation.

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