If you love the nostalgic flavors of childhood treats with a grown-up twist, the Flourless Fluffernutter Sandwich Cookies Recipe is a delightful way to indulge. These cookies combine rich, all-natural peanut butter with a luscious homemade vanilla bean marshmallow fluff, sandwiched between delightfully tender yet sturdy flourless peanut butter cookies. The result is a chewy, melt-in-your-mouth experience that’s gluten-free and utterly addictive. Whether you’re baking for family, friends, or just for yourself, this recipe brings joy one bite at a time.
Ingredients You’ll Need
One of the best things about this Flourless Fluffernutter Sandwich Cookies Recipe is how simple yet purposeful each ingredient is. From the creamy peanut butter that packs a nutty punch to the luxurious vanilla bean seeds adding real depth to the marshmallow fluff, every component plays a crucial role in creating balance and flavor harmony.
- Water: The base for the marshmallow syrup, providing just the right consistency.
- Granulated Sugar: Used in both the fluff and cookie dough for sweetness and structure.
- Light Corn Syrup: Helps create that glossy, stable marshmallow fluff texture.
- Large Egg Whites: Whipped into the fluff, they lend airy lightness and volume.
- Cream of Tartar: Stabilizes the egg whites so your fluff holds perfectly.
- Seeds From One Vanilla Bean: Infuses the fluff with warm, natural vanilla flavor.
- All Natural Unsweetened Peanut Butter: The star of the cookie—creamy, rich, and wholesome.
- Large Eggs + Egg Yolk: Bind and enrich the cookie dough for a tender crumb.
- Pure Vanilla Extract: Boosts the aroma and complements the peanut butter’s richness.
- Baking Soda: Gives the cookies a subtle lift and tenderness.
- Granulated Sugar (for rolling): Adds a delicate crunch and a sparkling finish to each cookie.
How to Make Flourless Fluffernutter Sandwich Cookies Recipe
Step 1: Prepare the Homemade Vanilla Bean Marshmallow Fluff
Begin by combining water, granulated sugar, and light corn syrup in a saucepan. Gently heat without stirring until the syrup reaches about 200°F, all while whipping your egg whites to soft peaks with cream of tartar added to stabilize. As the syrup cooks, continue whipping the egg whites, then slowly stream the hot syrup into the fluffy whites, creating a magical, thick marshmallow fluff that’s creamy and full of vanilla bean goodness.
Step 2: Make the Flourless Peanut Butter Cookie Dough
While your fluff cools slightly, mix together the peanut butter, sugar, eggs, vanilla extract, and baking soda in a bowl until a stiff dough forms. This dough is wonderfully sticky and full of peanut flavor, setting the stage for those iconic sandwich cookies.
Step 3: Shape and Bake the Cookies
Use a cookie scoop to make even balls of dough. Roll each in granulated sugar for a sparkling crunch, then gently press down with a fork or masher to flatten them. Bake at 350°F for 7 to 9 minutes, keeping in mind they will be soft when warm but will firm up as they cool. For an even prettier finish, you can press the cookies again when hot using a flat-bottomed cup.
Step 4: Assemble the Sandwich Cookies
Once the cookies have cooled completely, spread a generous amount of your homemade marshmallow fluff onto one cookie and sandwich it with another. The balance of chewy peanut butter cookies and fluffy vanilla marshmallow is simply heavenly in each bite.
How to Serve Flourless Fluffernutter Sandwich Cookies Recipe
Garnishes
These cookies are already a showstopper, but for a little extra flair, consider dusting the edges with finely chopped peanuts or a light sprinkle of cinnamon. A few mini chocolate chips pressed into the fluff before sandwiching also add a delightful surprise for chocolate lovers.
Side Dishes
Serve these cookies with a cold glass of milk or a cup of hot cocoa to balance their sweetness. They also pair wonderfully with fresh fruit such as sliced apples or strawberries, which provide a refreshing contrast to the rich peanut butter and sugar.
Creative Ways to Present
For parties, stack the sandwich cookies on a vintage cake stand or arrange them on a rustic wooden board dotted with fresh flowers for a whimsical touch. Wrapping each individually in parchment tied with twine not only keeps them fresh but makes them perfect for gifting or a sweet treat in lunchboxes.
Make Ahead and Storage
Storing Leftovers
You can keep any leftover Flourless Fluffernutter Sandwich Cookies Recipe treats in an airtight container at room temperature for up to three days. This helps maintain the cookies’ tender texture while keeping the marshmallow fluff soft and spreadable without drying out.
Freezing
If you’d like to save these cookies for later, freeze the sandwich cookies individually on a baking sheet first, then transfer to a freezer-safe bag or container. This prevents them from sticking together. They’ll keep well for up to one month. Thaw at room temperature before serving.
Reheating
To warm leftovers, place the cookies in a microwave for about 10-15 seconds to soften the marshmallow fluff and mildly warm the peanut butter cookies. Warmed cookies take on an even more luscious texture and are just divine with a cold glass of milk.
FAQs
Can I use store-bought marshmallow fluff instead of making it from scratch?
Absolutely! While the homemade vanilla bean marshmallow fluff takes this recipe to the next level with its fresh flavor and creamy texture, store-bought fluff works well too if you’re short on time.
Is this recipe truly flourless?
Yes, this entire recipe is flourless, relying on peanut butter as the base for the cookies, which makes it naturally gluten-free and perfect for those avoiding traditional flour.
Can I substitute crunchy peanut butter for smooth?
You can, but smooth peanut butter tends to produce better texture for the cookies. Crunchy peanut butter will add more texture inside but might make the dough a bit less cohesive.
What is the best way to measure the candy syrup temperature?
Using a reliable candy thermometer is key for the marshmallow fluff. The syrup must reach between 240°F and 250°F to create the perfect fluff consistency without risking over or undercooking.
How do I store leftover marshmallow fluff?
Store any unused marshmallow fluff in an airtight container in the fridge for up to one week. Before using again, gently bring it back to room temperature and give it a quick whip to restore fluffiness if needed.
Final Thoughts
Trying the Flourless Fluffernutter Sandwich Cookies Recipe is like rediscovering a classic favorite wrapped in a homemade embrace. With simple, wholesome ingredients and a bit of patience, you create a dessert that feels both nostalgic and new with every bite. Gather your loved ones, bake up a batch, and enjoy the smiles that follow!
Print
Flourless Fluffernutter Sandwich Cookies Recipe
- Total Time: 40 minutes
- Yield: 8 sandwich cookies (16 individual cookies)
- Diet: Gluten Free
Description
These Flourless Fluffernutter Sandwich Cookies combine soft, flourless peanut butter cookies with a homemade vanilla bean marshmallow fluff filling. This recipe features light, airy marshmallow fluff made from scratch and tender peanut butter cookies that are rolled in sugar and pressed for perfect texture. These nostalgic treats are gluten-free, easy to prepare, and ideal for peanut butter and marshmallow lovers.
Ingredients
For the Homemade Vanilla Bean Marshmallow Fluff:
- ½ cup Water
- 1 cup Granulated Sugar
- 1 cup Light Corn Syrup
- 5 Large Egg Whites, room temperature
- 1 teaspoon Cream of Tartar
- Seeds from One Vanilla Bean
For the Flourless Peanut Butter Cookies:
- 1 ¼ cups All Natural Unsweetened Peanut Butter
- 1 cup Granulated Sugar
- 1 Large Egg
- 1 Large Egg Yolk
- ½ teaspoon Pure Vanilla Extract
- ½ teaspoon Baking Soda
- ⅓ cup Granulated Sugar, for rolling
Instructions
- Make the Marshmallow Fluff Syrup: In a small to medium saucepan, combine water, granulated sugar, and corn syrup. Stir to mix, then heat over medium-high heat without stirring again. Attach a candy thermometer to the saucepan to monitor the temperature as it cooks to around 240-250°F.
- Whip Egg Whites: Place egg whites in a standing mixer bowl. Begin whipping the whites until soft peaks form as the sugar syrup reaches 200°F, which usually takes about 2-3 minutes. Add cream of tartar and whip for an additional 30 seconds.
- Combine Syrup and Egg Whites: When the syrup reaches 240-250°F, carefully and slowly pour the hot syrup into the whipped egg whites with the mixer on low speed. Once incorporated, increase mixer speed to medium-high and whip for 7-8 minutes until the mixture thickens to a marshmallow fluff consistency.
- Add Vanilla: Add vanilla bean seeds to the marshmallow fluff and whip for about 2 more minutes until slightly cooled. Use immediately or store refrigerated in an airtight container for up to one week.
- Prepare the Cookie Dough: Preheat the oven to 350°F. In a medium bowl, mix peanut butter, 1 cup sugar, eggs, vanilla extract, and baking soda until a stiff dough forms, about 30 seconds.
- Form and Roll Cookies: Using a 2-tablespoon cookie scoop, form 16 dough balls. Roll each ball in the ⅓ cup sugar used for coating. Place the coated dough balls on a nonstick baking sheet and press down with a fork or potato masher until about ¾ inch thick. This can be done before or after baking.
- Bake Cookies: Bake in the preheated oven for 7-9 minutes. The cookies may seem crumbly and slightly raw in the center when hot but will firm up as they cool.
- Press Cookies After Baking (Optional): If desired, gently press the warm cookies down with the bottom of a glass or measuring cup to flatten them further while still hot.
- Cool and Store: Let the cookies cool on a wire rack until no longer warm. Transfer to an airtight container to store.
- Assemble Sandwiches: Once cookies and fluff are ready, sandwich the marshmallow fluff between two peanut butter cookies for a delightful Fluffernutter sandwich cookie experience.
Notes
- The marshmallow fluff should be used immediately but stores well for up to one week in an airtight container in the refrigerator.
- You can press the cookies either before or after baking; both methods yield similar texture and shape.
- The cookies will be soft and slightly crumbly when hot but set up perfectly as they cool.
- Using a standing mixer is preferred for whipping the marshmallow fluff for best results.
- Make sure to monitor the candy thermometer closely to reach the precise syrup temperatures required for the fluff.
- The recipe yields 8 sandwich cookies, or 16 individual cookies.
- Prep Time: 30 minutes
- Cook Time: 10 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
