These Chocolate Marshmallow Swirl Cookies are a delightful treat that combines the rich flavors of chocolate and the fluffy sweetness of marshmallows. A favorite among cookie lovers, these cookies bring together the perfect blend of textures with chewy marshmallows and soft, fudgy chocolate. They’re great for any occasion, whether you’re baking for a special event or just satisfying a sweet craving.
The History of Chocolate Marshmallow Cookies
Chocolate and marshmallows have a long-standing history in desserts, often paired in candies, cakes, and cookies. The idea of pairing the two in cookies likely emerged in the mid-20th century when both ingredients became widely available in consumer kitchens. Early versions of marshmallow cookies were often simple, but the addition of rich chocolate helped elevate their taste. These cookies, with their unique swirl pattern, offer a modern twist on classic combinations that continue to delight bakers and dessert lovers today. Over the years, they’ve evolved with various iterations, but the basic idea remains a favorite in cookie-making traditions.
Ingredients Breakdown
To make Chocolate Marshmallow Swirl Cookies, you’ll need a variety of ingredients to ensure the perfect blend of flavors and textures. The base of the cookies consists of all-purpose flour, unsweetened cocoa powder, and baking soda. The fat comes from unsalted butter, which creates a smooth and rich cookie dough. Granulated sugar and brown sugar help balance the chocolate’s bitterness with sweetness, while eggs provide structure and moisture. The marshmallow swirl is made from mini marshmallows, which melt beautifully into the cookie dough, adding chewy pockets of sweetness. The chocolate chips can be semi-sweet, milk, or dark, depending on your preference. A pinch of salt enhances the flavors and helps to bring everything together. Vanilla extract adds a layer of warmth to the overall flavor profile.
Step-by-Step Recipe
- Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
- In a medium-sized bowl, whisk together 1 and 3/4 cups of all-purpose flour, 1/2 cup of unsweetened cocoa powder, and 1 teaspoon of baking soda. Set aside.
- In a separate bowl, cream together 1/2 cup of unsalted butter (softened), 1 cup of granulated sugar, and 1/2 cup of brown sugar until light and fluffy, about 2 minutes.
- Add 2 large eggs, one at a time, to the butter mixture, beating well after each addition. Stir in 1 teaspoon of vanilla extract.
- Gradually add the dry ingredients to the wet ingredients, mixing until combined.
- Fold in 1 cup of chocolate chips (semi-sweet or milk chocolate, depending on preference) and 1/2 cup of mini marshmallows.
- Drop spoonfuls of cookie dough onto the prepared baking sheet, spacing them about 2 inches apart.
- Bake for 10-12 minutes, or until the edges are set and the centers are slightly soft.
- Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.
Tips for the Perfect Chocolate Marshmallow Swirl Cookies
For the perfect cookie texture, be careful not to overmix the dough after adding the dry ingredients. Overmixing can lead to tough cookies. The key to getting a beautiful swirl effect is to not stir the marshmallows too much into the dough; they should remain in chunks so that they create pockets of gooey sweetness when baked. If you want extra chocolate flavor, add a bit of chocolate extract or use a mix of chocolate chips and chopped chocolate. To keep the marshmallows from melting completely and turning into goo, avoid opening the oven door too early in the baking process. If you prefer a softer cookie, remove them from the oven a little earlier and let them set on the baking sheet before transferring them.
Variations and Customizations
There are many ways to customize these cookies to suit your tastes or dietary preferences. For a more intense chocolate flavor, try adding a bit of espresso powder to the dough. If you’re looking for a healthier option, you can substitute whole wheat flour for all-purpose flour or use coconut sugar in place of granulated sugar for a lower glycemic index. Vegan versions can be made by swapping the butter for plant-based alternatives and using flax eggs instead of regular eggs. You can also experiment with different add-ins like crushed graham crackers for a s’mores-inspired cookie, or even add peanut butter chips for a creamy, nutty flavor.
Health Considerations and Nutritional Value
Chocolate Marshmallow Swirl Cookies, while undeniably delicious, are a treat to be enjoyed in moderation. The nutritional value of these cookies is largely influenced by the ingredients used. Typically, one cookie contains about 150-200 calories, with the majority of those calories coming from sugars and fats. The chocolate chips and marshmallows contribute to the cookie’s calorie count, while the butter and eggs provide essential fats and protein. While this cookie isn’t a health food, it can be enjoyed as part of a balanced diet, particularly when made with whole grain flour or alternative sweeteners for a slightly healthier option. As with most cookies, portion control is key when indulging in these sweet delights.
FAQ
- Can I make these cookies gluten-free? Yes, you can substitute the all-purpose flour with a gluten-free flour blend that is suitable for baking.
- Can I use regular-sized marshmallows instead of mini marshmallows? Yes, but you’ll need to chop the regular-sized marshmallows into smaller pieces to ensure they melt evenly in the dough.
- How can I store leftover cookies? Store the cookies in an airtight container at room temperature for up to 3 days. For longer storage, you can freeze them for up to 3 months.
- Can I freeze the dough before baking? Absolutely! You can scoop the cookie dough onto a baking sheet, freeze the dough balls, and then transfer them to a plastic bag or container for long-term storage. Bake directly from the freezer, adding an extra minute or two to the baking time.
- Can I add nuts to the cookies? Yes, adding chopped nuts like walnuts or pecans would enhance the flavor and texture of these cookies. Fold them in along with the chocolate chips and marshmallows.

Chocolate Marshmallow Swirl Cookies
Ingredients
- 2 cups all-purpose flour
- ¾ cup unsweetened cocoa powder
- ½ teaspoon baking soda
- ¼ teaspoon salt
- 1 cup unsalted butter softened
- 1½ cups granulated sugar
- 2 large eggs at room temperature
- 2 teaspoons vanilla extract
- 1 cup marshmallow fluff
Instructions
- Mix Dry Ingredients: In a medium bowl, whisk together 2 cups of all-purpose flour, ¾ cup of unsweetened cocoa powder, ½ teaspoon of baking soda, and ¼ teaspoon of salt. Set aside.
- Cream Butter and Sugar: In a large bowl, use an electric mixer to cream 1 cup of room-temperature unsalted butter with 1½ cups of granulated sugar until light and fluffy, about 3-4 minutes.
- Add Eggs and Vanilla: Beat in 2 large eggs, one at a time, making sure each is fully incorporated before adding the next. Stir in 2 teaspoons of vanilla extract.
- Combine Wet and Dry Ingredients: Gradually add the dry ingredients to the wet mixture, mixing on low speed until the dough just comes together. Be careful not to overmix. You can either gently swirl in the marshmallow fluff (or melted marshmallows) at this point or wait until after the dough chills.
- Chill the Dough: Cover the dough and refrigerate for at least 1 hour to make it easier to handle and to prevent excessive spreading while baking.
- Preheat Oven: About 20 minutes before you’re ready to bake, preheat the oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone mats.
- Form Cookies: Use a cookie scoop or tablespoon to portion out chilled dough and roll into balls. Place them on the prepared baking sheets, spacing them about 2 inches apart. Create a small indent in the center of each dough ball and spoon a teaspoon of marshmallow fluff into the indent. Then, use a toothpick to swirl the marshmallow into the cookie.
- Bake: Bake in the preheated oven for 10-12 minutes, or until the cookies are set at the edges but still soft in the center. Optionally, add a little more marshmallow fluff on top halfway through for extra gooeyness.
- Cool on Pan: Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely. This helps the marshmallow set slightly, making the cookies easier to handle.