Chocolate Marshmallow Swirl Treats

Section: Sweet Treats

These chocolate marshmallow swirl treats combine a rich cocoa dough with pockets of sweet marshmallow fluff. The dough is gently folded to preserve marshmallow ribbons, creating a visually appealing contrast and a satisfying chewy texture. Chilling the dough before baking helps maintain shape and enhances texture. Baked until the edges set while centers remain soft, these cookies offer a delightful blend of chocolate and gooey marshmallow. Cooling slightly on the sheet before transferring prevents breakage and retains moisture.

Sandra
Created By Sandra
Updated on Sat, 10 Jan 2026 18:02:59 GMT
A delicious meal of chocolate and white swirl cookies. Save
A delicious meal of chocolate and white swirl cookies. | howtogourmet.com

These chocolate marshmallow swirl cookies are the perfect blend of gooey sweetness and rich chocolate, creating a treat that feels like a warm hug on a chilly day. Each bite offers a delightful swirl of fluffy marshmallow ribbons tucked into soft, chocolaty dough that melts deliciously on the tongue.

I first made these cookies on a whim during a snowstorm, and the comforting combination instantly became a favorite in my family’s dessert rotation.

Ingredients You Need

  • Unsalted butter: softened to room temperature adds creaminess and helps achieve the perfect cookie texture& always choose fresh, high-quality butter
  • Light brown sugar: packs moisture and a subtle caramel note that deepens the flavor
  • Granulated sugar: provides sweetness and helps with cookie spread, so measuring accurately is key
  • One large egg: binds ingredients together and adds tenderness
  • Vanilla extract: enriches flavor with a sweet aroma& pure extract is worth the investment
  • All-purpose flour: builds the cookie’s structure& sifted for even mixing and to avoid lumps
  • Unsweetened cocoa powder: delivers deep chocolate intensity& pick Dutch-processed for a smoother taste or natural for a more robust profile
  • Baking soda: aids leavening, giving the cookies a nice rise without being too cakey
  • Salt: enhances all the flavors& fine salt mixes evenly in the dough
  • Chocolate chips: create pockets of melty chocolate joy throughout each bite& semi-sweet works wonderfully
  • Marshmallow fluff or crème: forms the signature sweet swirls that melt into luscious ribbons when baked& opt for a fresh jar with no discoloration

Detailed Cooking Directions

Build The Base:
Cream the softened butter with both sugars in a large mixing bowl until the mixture is light and fluffy. This process aerates the dough for a tender cookie and brings out the caramel notes from the sugars.
Mix In The Wet Elements:
Beat in the egg and vanilla extract until the mixture is smooth and well combined. This step ensures even flavor distribution and a glossy cookie dough.
Combine Dry Ingredients:
Whisk together flour, cocoa powder, baking soda, and salt in a separate medium bowl for even mixing. Gradually fold these dry ingredients into the wet mixture until just combined to avoid overworking the dough.
Fold In Chocolate Chips:
Gently fold in chocolate chips ensuring they are evenly spread without breaking them up, keeping the texture varied and melty.
Swirl The Marshmallow:
Spoon marshmallow fluff over the dough and fold a few times just to create beautiful swirls. Avoid overmixing so that you still see lovely marshmallow ribbons after baking, which adds visual appeal and that special gooey surprise.
Shape And Chill:
Scoop about two tablespoons of dough per cookie onto a baking sheet lined with parchment paper. Place the tray in the refrigerator and chill for 30 minutes to develop firm dough and prevent spreading while baking, resulting in thick, chewy cookies.
Bake To Perfection:
Preheat the oven to 350 degrees Fahrenheit (175 degrees Celsius). Bake the cookies for 10 to 12 minutes, watching carefully for edges to set while keeping the centers soft. This balance keeps the cookies tender with a slight chew.
Cool And Enjoy:
Allow cookies to rest on the baking sheet for five minutes before transferring to a wire rack. Cooling helps them set and improves texture, but they are also divine served warm for that fresh-from-the-oven indulgence.
A plate of chocolate marshmallow swirl cookies.
A plate of chocolate marshmallow swirl cookies. | howtogourmet.com

One of my favorite moments with this recipe was watching my kids’ faces light up when they pulled these out of the oven fresh and gooey. The marshmallow creates a little cloud of happiness in every bite that turns cookie time into an event.

Smart Storage Tips

Store these cookies in an airtight container at room temperature for up to four days to keep them soft and fresh. For longer storage, freeze in a single layer on a baking sheet, then transfer to a freezer bag where they will keep well for up to three months. To refresh slightly firm cookies, pop them in a warm oven for a few minutes or microwave briefly to revive that just-baked softness.

Ingredient Variations

Try swapping half the flour for almond flour for a subtle nutty note and a more tender crumb. Use dark chocolate chips for a deeper, more intense chocolate flavor that balances the sweet marshmallow. Adding a pinch of instant espresso powder to the dry ingredients can enhance the chocolate flavor without a noticeable coffee taste.

Perfect Pairing Ideas

Serve with a cold glass of milk to balance the sweetness and add a nostalgic touch. Pair with a cozy cup of hot chocolate or a mocha for extra indulgence when you want to curl up and savor. A scoop of vanilla ice cream alongside these cookies turns them into an easy dessert with hot-cold contrast.

Chocolate marshmallow swirl cookies.
Chocolate marshmallow swirl cookies. | howtogourmet.com

Baking these cookies brings me back to cozy afternoons and makes any day feel a little brighter. The combination of chocolate and marshmallow swirled together makes every bite a tiny celebration worth savoring.

Frequently Asked Questions

→ How do I prevent the marshmallow from blending fully into the dough?

Fold the marshmallow fluff gently just a few times into the dough. Overmixing causes it to blend completely, losing the desirable swirl effect.

→ What is the best way to achieve a chewy texture?

Chilling the dough for about 30 minutes before baking helps the cookies hold their shape and creates a tender, chewy texture.

→ Can I use other types of chocolate besides chocolate chips?

Yes, chopped chocolate or chunks work well, offering varied texture and pockets of melted chocolate throughout.

→ How do I know when the cookies are perfectly baked?

Bake until the edges are set and the centers still appear slightly soft. This ensures a moist, tender bite once cooled.

→ What equipment is needed for preparation?

You'll need mixing bowls, a hand mixer or whisk, a spatula, baking sheet lined with parchment paper, and a wire rack for cooling.

→ Can I substitute marshmallow fluff with other ingredients?

Marshmallow crème provides a similar texture and sweetness, maintaining the marshmallow ribbons in the cookies.

Chocolate Marshmallow Swirl

Soft chocolate cookies with melted marshmallow swirls create a chewy, sweet dessert perfect for any occasion.

Preparation Time
15 minutes
Time to Cook
12 minutes
Overall Time
27 minutes
Created By: Sandra

Type of Recipe: Sweet Treats

Difficulty Rating: Simple for Beginners

Cuisine Style: American

Yield: 14 Number of Servings (14 cookies)

Dietary Options: Suitable for Vegetarians

Ingredients Required

→ Dairy and Sugars

01 113 g unsalted butter, softened
02 100 g light brown sugar, packed
03 50 g granulated sugar

→ Wet Ingredients

04 1 large egg
05 5 ml vanilla extract

→ Dry Ingredients

06 125 g all-purpose flour
07 50 g unsweetened cocoa powder
08 2.5 g baking soda
09 1.25 g salt

→ Mix-ins

10 90 g chocolate chips
11 220 g marshmallow fluff or marshmallow crème

Detailed Directions

Instruction Step 01

In a large bowl, beat the softened butter with the brown and granulated sugars until light and fluffy.

Instruction Step 02

Add the egg and vanilla extract to the butter mixture and mix until fully incorporated and smooth.

Instruction Step 03

In a separate bowl, whisk together the flour, cocoa powder, baking soda, and salt.

Instruction Step 04

Gradually add the dry ingredients to the wet mixture, stirring until a soft dough forms.

Instruction Step 05

Gently incorporate the chocolate chips evenly throughout the dough.

Instruction Step 06

Carefully fold in the marshmallow fluff a few times, maintaining visible ribbons without overmixing.

Instruction Step 07

Scoop approximately 30 g (2 tablespoons) of dough per cookie onto a parchment-lined baking sheet and chill for 30 minutes to optimize texture and shape.

Instruction Step 08

Preheat the oven to 175°C. Bake the cookies for 10 to 12 minutes until edges are set but centers remain slightly soft.

Instruction Step 09

Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely or serve warm.

Helpful Advice

  1. Chilling the dough prior to baking improves cookie shape and texture.

Equipment Needed

  • Large mixing bowl
  • Medium mixing bowl
  • Hand mixer or whisk
  • Spatula
  • Baking sheet
  • Parchment paper
  • Wire rack

Allergen Info

Review ingredient labels for allergens and talk to a doctor if unsure.
  • Contains eggs, dairy, and gluten

Nutrition Information (Per Serving)

Use these nutrition facts as a guide only. Always check with a healthcare expert.
  • Calorie Count: 210
  • Fat Content: ~
  • Carbohydrate Amount: ~
  • Protein Content: ~