Rich chocolate cookies with a hidden marshmallow fluff center feel like a little bakery-level magic at home. The crackly edges and fudgy middles pair perfectly with that sweet, gooey surprise inside. These cookies look impressive, but the prep is simple and fast.

You’ll cream, scoop, stuff, and bake—no chilling time required. If you love s’mores or hot cocoa vibes, this is your cookie.

Marshmallow Fluff Stuffed Chocolate Cookies

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Cook Time 11 minutes mins

Ingredients

  

• 1/2 cup 113 g unsalted butter, melted and slightly cooled
• 3/4 cup 150 g granulated sugar
• 1/2 cup 100 g packed light brown sugar
• 1 large egg at room temperature
• 1 teaspoon vanilla extract
• 1 cup 120 g all-purpose flour
• 1/2 cup 45 g Dutch-process cocoa powder (natural cocoa works too, but Dutch gives deeper flavor)
• 1/2 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/2 teaspoon fine salt
• 3/4 cup 135 g semisweet or dark chocolate chips
• 1 cup marshmallow fluff also called marshmallow creme
• Optional: flaky sea salt for topping

Instructions

 

• Prep your oven and pans. Heat the oven to 350°F (175°C).
• Line two sheet pans with parchment paper or silicone mats.
• Whisk the wet ingredients. In a large bowl, whisk the melted butter with the granulated and brown sugars until glossy and combined. Add the egg and vanilla, whisking until smooth.
• Combine the dry ingredients. In a separate bowl, whisk the flour, cocoa powder, baking soda, baking powder, and salt to break up any lumps.
• Make the dough. Add the dry ingredients to the wet. Switch to a spatula and fold until just combined.
• Stir in the chocolate chips. The dough will be thick but scoopable.
• Portion the dough. Scoop 2-tablespoon mounds (about 40–45 g each). Roll each into a ball, then flatten gently into a thick disk in your palm.
• Add the fluff. Spoon about 1 to 1.5 teaspoons of marshmallow fluff onto the center of each disk.
• Try to keep it in a neat dollop to avoid oozing.
• Seal well. Fold the dough edges up and over the fluff, pinching to seal fully. Roll back into a ball and place seam-side down on the baking sheet, leaving 2 inches between cookies.
• Bake. Bake 9–11 minutes, until the edges are set and the tops are slightly crackled. A little puff is good; they’ll settle as they cool.
• If using, sprinkle a pinch of flaky sea salt on hot cookies.
• Cool. Let cookies rest on the pan for 10 minutes before transferring to a rack. This helps the centers set without losing their gooey texture.
• Serve. Enjoy warm for the best marshmallow pull. They’re still great at room temp—soft, fudgy, and rich.

What Makes This Special

These cookies bring together a chewy chocolate base and a melty marshmallow core for the best of both worlds—texture and flavor. Unlike cookies with whole marshmallows, marshmallow fluff melts into a creamy center without vanishing.

The dough is easy to handle and doesn’t need chilling, so you can bake right away. They’re also sturdy enough to hold their shape, so you get a neat, bakery-style look with minimal fuss. Great for parties, bake sales, or a cozy night in.

Ingredients

• 1/2 cup (113 g) unsalted butter, melted and slightly cooled
• 3/4 cup (150 g) granulated sugar
• 1/2 cup (100 g) packed light brown sugar
• 1 large egg, at room temperature
• 1 teaspoon vanilla extract
• 1 cup (120 g) all-purpose flour
• 1/2 cup (45 g) Dutch-process cocoa powder (natural cocoa works too, but Dutch gives deeper flavor)
• 1/2 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/2 teaspoon fine salt
• 3/4 cup (135 g) semisweet or dark chocolate chips
• 1 cup marshmallow fluff (also called marshmallow creme)
• Optional: flaky sea salt for topping

How to Make It

1. Prep your oven and pans. Heat the oven to 350°F (175°C).
   

   Line two sheet pans with parchment paper or silicone mats.

2. Whisk the wet ingredients. In a large bowl, whisk the melted butter with the granulated and brown sugars until glossy and combined. Add the egg and vanilla, whisking until smooth.
3. Combine the dry ingredients. In a separate bowl, whisk the flour, cocoa powder, baking soda, baking powder, and salt to break up any lumps.
4. Make the dough. Add the dry ingredients to the wet. Switch to a spatula and fold until just combined.
   

   Stir in the chocolate chips. The dough will be thick but scoopable.

5. Portion the dough. Scoop 2-tablespoon mounds (about 40–45 g each). Roll each into a ball, then flatten gently into a thick disk in your palm.
6. Add the fluff. Spoon about 1 to 1.5 teaspoons of marshmallow fluff onto the center of each disk.
   

   Try to keep it in a neat dollop to avoid oozing.

7. Seal well. Fold the dough edges up and over the fluff, pinching to seal fully. Roll back into a ball and place seam-side down on the baking sheet, leaving 2 inches between cookies.
8. Bake. Bake 9–11 minutes, until the edges are set and the tops are slightly crackled. A little puff is good; they’ll settle as they cool.
   

   If using, sprinkle a pinch of flaky sea salt on hot cookies.

9. Cool. Let cookies rest on the pan for 10 minutes before transferring to a rack. This helps the centers set without losing their gooey texture.
10. Serve. Enjoy warm for the best marshmallow pull. They’re still great at room temp—soft, fudgy, and rich.

Storage Instructions

• Room temperature: Store in an airtight container for 2–3 days.
  

  Place parchment between layers to prevent sticking.

• Reheat: Warm in the microwave for 8–10 seconds to revive the gooey center.
• Freezing baked cookies: Freeze in a single layer until solid, then transfer to a freezer bag for up to 2 months. Thaw at room temperature; refresh in a 300°F (150°C) oven for 4–5 minutes.
• Freezing unbaked dough balls: Freeze after stuffing and sealing. Bake from frozen at 350°F (175°C) for 11–13 minutes.

Benefits of This Recipe

• Big chocolate payoff: Cocoa plus chocolate chips gives depth and melty pockets in every bite.
• No chill time: You can mix and bake in under an hour.
• Kid-friendly and party-ready: The gooey center is a guaranteed crowd-pleaser.
• Flexible: Works with Dutch or natural cocoa, and you can switch up the mix-ins.
• Bakery look, home effort: Crackly tops with a neat stuffed center without advanced techniques.

What Not to Do

• Don’t skimp on sealing. If any marshmallow is exposed, it may leak and caramelize on the sheet.
• Don’t overbake. These go from fudgy to dry fast.
  

  Pull them when edges are set but centers still look soft.

• Don’t overload the fluff. More than 1.5 teaspoons can make sealing messy and cause blowouts.
• Don’t skip cooling on the pan. The rest time lets the structure set around the molten center.
• Don’t pack the flour. Spoon and level it to avoid dry, cakey cookies.

Alternatives

• Swirl instead of stuffing: Drop small dollops of fluff onto scooped dough balls and marble lightly with a toothpick for a s’mores-style look.
• Mini marshmallows: Use 2–3 minis in place of fluff; freeze them first to reduce melting into the dough.
• Flavor twists: Add 1/2 teaspoon espresso powder for deeper chocolate flavor, or 1/2 teaspoon peppermint extract for a holiday vibe.
• Mix-in swap: Try white chocolate chips, chopped dark chocolate, or crushed graham crackers for texture.
• Gluten-free: Use a 1:1 gluten-free baking flour with xanthan gum. Watch bake time; GF can brown faster.
• Dairy-free: Sub vegan butter and dairy-free chocolate chips. Check that your marshmallow creme is dairy-free (many are).

FAQ

Why use marshmallow fluff instead of regular marshmallows?

Fluff melts into a creamy center without disappearing or turning rubbery.

Regular marshmallows can dissolve or leave hollow pockets unless they’re frozen first and sealed very well.

My cookies spread too much. What happened?

Your butter may have been too hot, or you may have used less flour than needed. Let melted butter cool until just warm, and be sure to measure flour by spooning and leveling.

Lining the pan with parchment also helps control spread.

Can I make the dough ahead?

Yes. Store the dough (unstuffed) in the fridge for up to 24 hours. Let it sit at room temp for 15–20 minutes before scooping and stuffing so it’s easier to handle.

You can also freeze stuffed dough balls and bake from frozen.

How do I keep the fluff from leaking?

Keep the dollop centered, don’t overfill, and seal all seams. Chilling the stuffed dough balls for 10 minutes before baking can help if your kitchen is warm.

What cocoa powder is best?

Dutch-process cocoa gives a smoother, darker chocolate flavor. Natural cocoa works too and will taste slightly brighter.

Use what you have; both make great cookies.

Can I reduce the sugar?

You can cut granulated sugar by 2 tablespoons without affecting texture much. Any larger reduction may lead to a drier, less fudgy cookie and less spread.

How do I get that shiny, crackly top?

Whisk the sugars well into the warm melted butter to help dissolve them, then avoid overmixing once the dry ingredients go in. A slightly underbaked center also encourages a glossy, crackled finish.

In Conclusion

Marshmallow Fluff Stuffed Chocolate Cookies deliver rich chocolate flavor with a soft, gooey core that feels special every time.

The method is simple, the ingredients are basic, and the results look bakery-made. Keep the dough sealed, don’t overbake, and enjoy them warm for peak marshmallow magic. Whether for a weekend bake or your next gathering, this recipe is a keeper.