Walking through the warm, inviting scents of a cozy kitchen, I find myself reminiscing about the sweet treats of my childhood, especially the delightful Marshmallow Swirl Fudge. This no-bake goodness combines ooey-gooey marshmallow with rich chocolate, making it an instant crowd-pleaser that’s perfect for every occasion. The beauty of this recipe lies in its sheer simplicity; with minimal prep time and no need for a candy thermometer, it comes together effortlessly whether you’re a seasoned home chef or just starting your culinary journey. Not only does it whisk you away with its creamy texture and chocolatey goodness, but it also allows for endless variations to suit your taste. What’s not to love about a decadent fudge that’s as quick to make as it is delicious? Are you ready to take on a sweet adventure in your kitchen?

Why is Marshmallow Swirl Fudge a Must-Try?
Irresistibility: This no-bake treat is incredibly easy to whip up, making it perfect for those last-minute cravings.
Creamy Texture: The combo of chocolate and marshmallow fluff creates a rich, velvety indulgence that melts in your mouth.
Endless Variations: Whether you want to add nuts, mix in dark chocolate, or create a s’mores twist, the possibilities are as exciting as your imagination!
Quick Prep: With just a few simple steps, you’ll have a delightful dessert ready in no time—perfect for impromptu gatherings.
Crowd-Pleasing: This fudge isn’t just a hit with adults; kids love it, too! You’ll find everyone reaching for seconds.
Don’t forget to check out my Marshmallow Brownies Fudgy for another chocolate treat and try the Hot Fudge Brownie for your next baking adventure!
Marshmallow Swirl Fudge Ingredients
For the Fudge Base
• Semi-sweet chocolate chips – Provides the chocolate base for rich flavor; you can use dairy-free chocolate for a dairy-free version.
• Sweetened condensed milk – Acts as a binder and adds sweetness; consider coconut condensed milk for a dairy-free alternative.
• Unsalted butter (melted) – Adds richness and helps blend the ingredients smoothly.
• Vanilla extract – Enhances the overall flavor profile, making each bite even more delicious.
• Salt – Balances sweetness and enhances the overall taste, ensuring a delightful experience.
For the Marshmallow Swirl
• Marshmallow fluff (or marshmallow cream) – Adds a sweet, gooey swirl; avoid using mini marshmallows for best texture results.
Step‑by‑Step Instructions for Marshmallow Swirl Fudge
Step 1: Melt Chocolate Mixture
In a medium saucepan, combine 2 cups of semi-sweet chocolate chips, 1 can of sweetened condensed milk, and 2 tablespoons of melted unsalted butter. Place the saucepan over low heat and stir continuously for about 5-7 minutes until the mixture is completely smooth and glossy, making sure not to let it burn.
Step 2: Flavor Addition
Once the chocolate mixture is smooth, remove the saucepan from heat and stir in 1 teaspoon of vanilla extract and a pinch of salt. Mix until the flavors are fully incorporated. This step is crucial in enhancing the overall taste of your Marshmallow Swirl Fudge, making it rich and delightful.
Step 3: Prepare Baking Dish
Line an 8×8-inch baking dish with parchment paper, allowing some overhang for easy removal later. This preparation helps your fudge not stick to the dish, ensuring beautiful, clean squares once it’s set. Set the prepared dish aside for the next steps.
Step 4: Spread Fudge
Pour the warm chocolate mixture into the lined baking dish, and use a spatula to spread it evenly across the bottom. Make sure to create a smooth, even layer that reaches the corners, guaranteeing every bite of your Marshmallow Swirl Fudge is delicious and consistent in texture.
Step 5: Add Marshmallow Fluff
Spoon dollops of marshmallow fluff over the top of the fudge layer, distributing it evenly. Then, take a knife or toothpick and gently swirl it through the fudge. Be cautious not to overmix; you want to create beautiful ribbons of marshmallow to highlight in the finished fudge.
Step 6: Chill
Place the baking dish in the refrigerator and chill for at least 2 hours, or until the fudge is firm and set. This chilling time is essential for allowing the fudge to reach that perfect, sliceable consistency that makes it a delightful treat to serve.
Step 7: Cut and Serve
Once the fudge has set, carefully lift it out of the dish using the overhanging parchment paper. Place it on a cutting board and slice it into uniform squares. Your homemade Marshmallow Swirl Fudge is now ready to serve—indulge in the rich chocolate flavor combined with gooey marshmallow goodness!

What to Serve with Marshmallow Swirl Fudge
Looking to create a delightful dessert spread that will impress your friends and family?
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Rich Ice Cream: The creamy texture of vanilla or chocolate ice cream perfectly balances the fudgy richness, creating a decadent dessert experience.
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Fresh Berries: Juicy strawberries or raspberries provide a refreshing burst of flavor that cuts through the sweetness, adding a pop of color to your plate.
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Crunchy Cookies: Serve with chocolate chip or graham cracker cookies. Their crunch complements the smooth fudge, making every bite an adventure in texture.
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Nutty Trail Mix: A sprinkle of chopped nuts or a nutty trail mix can add a satisfying crunch and earthy flavor, enhancing the overall taste profile of the fudge.
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Hot Coffee or Tea: Pairing your fudge with a steaming cup of coffee or tea not only warms your heart but also elevates the flavors, providing a comforting finish.
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Whipped Cream: A dollop of fluffy whipped cream on top adds a light, airy touch that rounds out the richness of the fudge beautifully.
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Chocolate Drizzle: Enhance your fudge experience by drizzling warm chocolate or caramel sauce on top for an extra layer of indulgence that chocolate lovers crave.
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Creamy Milkshake: Blend up a chocolate milkshake for a sweet and creamy accompaniment, perfect for those cozy nights in with a film.
Marshmallow Swirl Fudge Variations
Feel free to get creative and customize your Marshmallow Swirl Fudge to suit your cravings or dietary needs!
- Dairy-Free: Swap the semi-sweet chocolate with dairy-free chocolate and use coconut condensed milk.
- Extra Chocolatey: Stir in chopped dark chocolate chips or chunks before adding the marshmallow for an indulgent double-chocolate experience.
- Nutty Delight: Add chopped pecans or walnuts into the fudge mixture for a delicious crunch that contrasts beautifully with the creamy texture.
- S’mores Twist: Create a graham cracker crust at the bottom of the fudge for a nostalgic, campfire-inspired dessert that will take you back to summer nights!
- Minty Fresh: Mix in a drop of peppermint extract for a refreshing and festive flavor; great around the holidays!
- Peanut Butter Swirl: Gently fold in creamy peanut butter for a nutty twist that elevates the fudge to a whole new level of decadence.
- Spicy Kick: Add a pinch of cayenne pepper or chili powder to the chocolate mixture for a subtle kick, creating a surprisingly delightful flavor combination.
- Coconut Paradise: Stir in shredded coconut and top with additional toasted coconut flakes for a tropical flair that complements the rich chocolate.
Now, if the idea of fudgy marshmallows has you feeling adventurous, you might want to check out my delectable Marshmallow Brownies Fudgy or treat yourself to the delightful Hot Fudge Brownie recipe for more chocolatey goodness!
Expert Tips for Marshmallow Swirl Fudge
Smooth Swirls: Make sure to use marshmallow fluff instead of mini marshmallows, as the fluff creates smooth, gooey ribbons that enhance the fudge.
Chill Thoroughly: Allow the fudge to chill completely before cutting; this ensures cleaner, more presentable squares and a better texture overall.
Avoid Overmixing: When swirling the marshmallow fluff into the chocolate base, use gentle motions to maintain distinct ribbons and prevent a uniform color.
Ingredient Substitutions: Feel free to experiment with dairy-free chocolate and coconut condensed milk for a delightful dairy-free Marshmallow Swirl Fudge.
Texture Variations: For a fun twist, consider adding crushed graham crackers or nuts into the fudge mixture before chilling; this will add a delightful crunch!
How to Store and Freeze Marshmallow Swirl Fudge
Room Temperature: Keep the fudge in an airtight container for up to 2 days to maintain its freshness, though refrigeration is recommended for longer storage.
Fridge: Store in an airtight container in the refrigerator for up to 1 week. This helps retain the fudge’s creamy texture and flavors.
Freezer: For longer storage, freeze the fudge wrapped tightly in plastic wrap and aluminum foil for up to 3 months. Thaw in the fridge before serving.
Reheating: If you prefer a soft texture, microwave individual pieces for about 10-15 seconds. Enjoy the deliciousness of your Marshmallow Swirl Fudge!
Make Ahead Options
These Marshmallow Swirl Fudge treats are perfect for meal prep enthusiasts! You can prepare the chocolate base (the mixture of chocolate chips, sweetened condensed milk, and melted butter) up to 24 hours in advance and store it in the refrigerator. Simply allow it to cool completely before covering it in an airtight container. The marshmallow fluff can also be measured and set aside to use later. When you’re ready to finish, simply reheat the chocolate mixture gently and proceed to swirl in the marshmallow fluff. This not only saves you time on busy weeknights but also ensures your fudge maintains its creamy texture, just as delicious as if made fresh!

Marshmallow Swirl Fudge Recipe FAQs
What chocolate should I use for the best flavor?
Absolutely! Using high-quality semi-sweet chocolate chips enhances the overall flavor of your Marshmallow Swirl Fudge. If you prefer a dairy-free version, look for dairy-free chocolate chips or use dark chocolate for a deeper flavor.
How should I store my Marshmallow Swirl Fudge?
To keep your fudge fresh and delicious, store it in an airtight container in the refrigerator for up to 1 week. For optimal texture, allow it to come to room temperature before serving. If you’re not eating it all within that time, it’s best to freeze for prolonged enjoyment.
Can I freeze Marshmallow Swirl Fudge?
Yes! To freeze your Marshmallow Swirl Fudge, wrap it tightly in plastic wrap, then place it in a freezer-safe container or wrap it in aluminum foil. It can last in the freezer for up to 3 months. When you’re ready to enjoy it, simply thaw it in the fridge overnight.
What should I do if my fudge doesn’t set properly?
If your fudge isn’t setting, it may be due to the chocolate mixture not being melted properly or the ratios being slightly off. Ensure you’ve melted the chocolate, sweetened condensed milk, and butter together smoothly, and try increasing the chilling time to at least 3 hours. If it still doesn’t set, consider adding more marshmallow fluff or unchurning your mixture.
Is there a way to make this recipe allergy-friendly?
Very much so! You can substitute the semi-sweet chocolate chips with dairy-free alternatives and the sweetened condensed milk with coconut condensed milk. Check for ingredient labels to ensure they’re free from allergens specific to your needs, especially for nut allergies if you’re including any crunchy additions.
Can I use mini marshmallows instead of marshmallow fluff?
It’s best to avoid using mini marshmallows, as they won’t create the same smooth texture or beautiful swirls in your fudge. I recommend using marshmallow fluff (or marshmallow cream) for the perfect gooey ribbons that make Marshmallow Swirl Fudge truly indulgent!

Irresistible Marshmallow Swirl Fudge: A No-Bake Delight!
Ingredients
Equipment
Method
- In a medium saucepan, combine 2 cups of semi-sweet chocolate chips, 1 can of sweetened condensed milk, and 2 tablespoons of melted unsalted butter. Place the saucepan over low heat and stir continuously for about 5-7 minutes until the mixture is completely smooth and glossy.
- Once the chocolate mixture is smooth, remove the saucepan from heat and stir in 1 teaspoon of vanilla extract and a pinch of salt.
- Line an 8x8-inch baking dish with parchment paper, allowing some overhang for easy removal later. Set the prepared dish aside.
- Pour the warm chocolate mixture into the lined baking dish, and use a spatula to spread it evenly across the bottom.
- Spoon dollops of marshmallow fluff over the top of the fudge layer, and gently swirl it through the fudge without overmixing.
- Place the baking dish in the refrigerator and chill for at least 2 hours, or until the fudge is firm and set.
- Once the fudge has set, carefully lift it out of the dish and slice it into uniform squares.
