The first time I tasted Marshmallow Swirl Fudge, it was like an explosion of childhood memories wrapped in warm nostalgia. This dreamy no-bake delight effortlessly marries the rich embrace of semi-sweet chocolate with the whimsical dance of gooey marshmallow fluff. Made in just moments—with no need for baking or specialized equipment—this fudge is perfect for those evenings when you crave a quick sweet fix or want to impress guests without the fuss. Plus, it’s endlessly versatile, allowing you to add a unique twist that makes it your own. Who wouldn’t want to share a slice of this melting, creamy bliss? Ready to indulge in a treat that brings joy with every bite? Let’s dive into this recipe together!

Why is Marshmallow Swirl Fudge Irresistible?
No Baking Required: This recipe is a breeze; just melt, swirl, and chill. Perfect for busy days when you need a stress-free dessert!
Decadent Flavors: The rich chocolate and sweet marshmallow combo creates a heavenly indulgence that’s hard to resist. Each bite offers a luscious, creamy texture.
Versatile Delight: Feel free to experiment! Mix in nuts, swap ingredients for a dairy-free version, or add a graham cracker crust for a s’mores twist. Discover more ways to enjoy fudge, like with our Cinnamon Swirl Banana recipe!
Crowd-Pleasing Treat: Ideal for parties or as a homemade gift, your friends and family will be raving about this fudge.
Make Ahead: It’s a great make-ahead option for gatherings, letting you enjoy dessert without the last-minute rush.
Marshmallow Swirl Fudge Ingredients
• Get ready to make a delightful treat with these simple ingredients!
For the Fudge Base
- Semi-Sweet Chocolate Chips – Provides rich chocolate flavor; feel free to use dairy-free chocolate for an alternative.
- Sweetened Condensed Milk – Adds creaminess and sweetness; can substitute with coconut condensed milk for a dairy-free option.
- Unsalted Butter – Contributes to the richness and acts as a binding agent.
- Vanilla Extract – Enhances the flavor complexity of the fudge.
- Salt – Balances the sweetness and uplifts the overall flavor.
For the Marshmallow Swirl
- Marshmallow Fluff – Creates the signature gooey texture; can be swapped with marshmallow cream if needed.
Now you’re all set to whip up this creamy, dreamy Marshmallow Swirl Fudge that everyone will love!
Step‑by‑Step Instructions for Marshmallow Swirl Fudge
Step 1: Melt the Base Mixture
In a medium saucepan, over low heat, combine semi-sweet chocolate chips, sweetened condensed milk, and unsalted butter. Stir continuously for about 5–7 minutes, until the mixture is smooth and glossy, taking care not to let it scorch. Once melted, remove the saucepan from the heat and let it cool slightly while you prepare for the next step.
Step 2: Add Flavor Enhancers
After letting the chocolate mixture cool for a couple of minutes, stir in the vanilla extract and a pinch of salt. Mix well to fully incorporate these flavor enhancers into your creamy fudge base. This is the moment where the rich aroma of Marshmallow Swirl Fudge starts to fill your kitchen, enticing everyone around!
Step 3: Prepare the Baking Dish
Line an 8×8-inch baking dish with parchment paper, allowing some overhang for easy removal later. Pour the warm chocolate mixture into the prepared dish and spread it evenly using a spatula, creating a smooth surface. Be sure to work quickly so the mixture stays warm and pliable for the next step.
Step 4: Swirl in the Marshmallow Fluff
Using a spoon, drop generous spoonfuls of marshmallow fluff over the top of the chocolate layer. With a knife or skewer, gently swirl the fluff into the fudge, taking care not to overmix—the key to a beautiful Marshmallow Swirl Fudge is keeping those delightful ribbons of marshmallow intact!
Step 5: Chill Until Firm
Place the baking dish in the refrigerator and chill for a minimum of 2 hours or until the fudge is firm to the touch. The chill time is essential for setting the fudge perfectly, so resist the temptation to cut in too early. After it has chilled, you’ll be rewarded with a beautifully solid texture that slices beautifully.
Step 6: Cut and Serve
Once firm, lift the fudge out of the baking dish using the parchment paper overhang. Place it on a cutting board and slice into squares or rectangles, whichever size you prefer. Arrange these lovely pieces of Marshmallow Swirl Fudge on a platter and get ready to share this mouthwatering treat with friends and family!

Marshmallow Swirl Fudge Variations
Get ready to make this recipe your own with some delightful tweaks!
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Dairy-Free: Substitute semi-sweet chocolate with dairy-free chocolate chips and sweetened condensed milk with coconut condensed milk for a rich, plant-based version.
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Nutty Addition: Toss in chopped nuts, like walnuts or pecans, into the fudge base for a satisfying crunch that beautifully contrasts the smooth texture. Just note, this adds a lovely surprise in each bite.
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S’mores Style: For a fun twist, layer crushed graham crackers on the bottom of your dish before pouring in the fudge. This gives you that delicious s’mores experience without the campfire!
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Chocolate Chip Boost: Mix in some mini chocolate chips with the chocolate mixture for extra chocolatey goodness. The little bursts of melted chocolate take this fudge over the top.
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Peanut Butter Swirl: Don’t shy away from adding a drizzle of creamy peanut butter on top of the fudge before swirling. It adds a nutty richness that pairs perfectly with the chocolate and marshmallow.
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Coconut Flavor: Stir in a bit of shredded coconut into the fudge base for a tropical flair. You can even top it with toasted coconut for an extra layer of flavor and texture.
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Spiced Delight: Incorporate a pinch of cinnamon or a drop of peppermint extract to layer in unique flavors. A little goes a long way in transforming the fudge into a seasonal treat.
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Gourmet Touch: Elevate your fudge with a sprinkle of sea salt over the top before serving. The salt balances the sweetness beautifully—a simple, yet sophisticated touch!
Remember, each variation adds a personal touch to your fudge adventure. Looking for more inspiration? Don’t forget to check out our Cinnamon Swirl Banana recipe for another scrumptious treat!
What to Serve with Marshmallow Swirl Fudge
Indulging in Marshmallow Swirl Fudge is a delightful experience, but pairing it with the right accompaniments elevates your enjoyment to a whole new level.
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Creamy Vanilla Ice Cream: The cool creaminess of vanilla ice cream perfectly contrasts the rich fudge, providing a refreshing note that balances sweetness.
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Fresh Berries: Bright, juicy strawberries or raspberries add a burst of tartness, enhancing the fudge’s sweetness and creating a symphony of flavors on your palate.
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Crunchy Nut Topping: Chopped toasted nuts introduce a savory crunch, offering a delightful textural contrast to the smooth fudge, making each bite uniquely satisfying.
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Rich Coffee: A warm cup of coffee brings depth and boldness, cutting through the richness of the fudge while adding a comforting aroma.
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Chocolate Dipped Pretzels: The salty crunch of pretzels, coated in chocolate, pairs wonderfully with the fudge’s smoothness, creating a delightful sweet-and-salty experience.
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Caramel Sauce Drizzle: Drizzling warm caramel sauce over the fudge introduces another layer of sweetness, perfect for those who adore an indulgent treat. This extra touch makes every piece feel like a special dessert.
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Whipped Cream: Light and airy, a dollop of whipped cream adds a fluffy dimension, making your fudge experience even more decadent for those comforting nights in.
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Milkshake: A thick chocolate or vanilla milkshake rejuvenates and complements the rich flavors of the fudge, creating a nostalgic pairing that feels like a diner delight.
With these pairings, every bite of your Marshmallow Swirl Fudge will be a delicious celebration, offering a feast for both the eyes and palate!
Make Ahead Options
These Marshmallow Swirl Fudge treats are perfect for meal prep enthusiasts looking to save time! You can prepare the fudge base up to 3 days in advance by following steps 1-4, then refrigerate it tightly covered. To ensure the quality remains top-notch, it’s vital to allow the fudge to cool completely before covering to prevent condensation. When you’re ready to indulge, just swirl in the marshmallow fluff (step 4) and chill for another 2 hours before serving. This way, you can effortlessly impress your guests with a rich, delectable dessert, all while being ahead of the game!
Storage Tips for Marshmallow Swirl Fudge
Room Temperature: Keep the fudge in an airtight container at room temperature for up to 1 week. This will maintain its soft, creamy texture for you to enjoy daily.
Fridge: You can also store it in the refrigerator for up to 2 weeks. Just make sure it’s tightly wrapped or in an airtight container to prevent it from absorbing odors.
Freezer: For longer storage, freeze the fudge in an airtight container for up to 3 months. Thaw it in the refrigerator before serving for the best texture.
Reheating: Enjoy the fudge cold or let it sit at room temperature for a few minutes before indulging. Just remember, this Marshmallow Swirl Fudge is best savored at a slightly warmer temperature for that melt-in-your-mouth experience!
Expert Tips for Marshmallow Swirl Fudge
• Marshmallow Choices: Use marshmallow fluff, not mini marshmallows, for smooth swirls; this enhances the fudge’s creamy texture.
• Swirling Technique: Be gentle when swirling the marshmallow fluff into the fudge; overmixing will blend it completely, losing those beautiful ribbons.
• Chill Properly: Allow the fudge to chill for a minimum of 2 hours; this step is vital for achieving clean, beautiful cuts when serving.
• Flavor Boost: For deeper chocolate flavor, consider adding chopped dark chocolate into the base mixture before swirling.
• Storage Tips: Store leftover fudge in an airtight container at room temperature for up to one week, or refrigerate to extend freshness.
• Fun Variations: Experiment by adding crushed graham crackers on top for a delightful s’mores vibe that complements the rich Marshmallow Swirl Fudge perfectly!

Marshmallow Swirl Fudge Recipe FAQs
How do I choose the best chocolate for my fudge?
Absolutely! When selecting semi-sweet chocolate chips for your Marshmallow Swirl Fudge, look for high-quality brands that contain cocoa solids and cocoa butter. Avoid chips with hydrogenated oils as they don’t melt well. A smooth melting chocolate creates a rich base—I’d recommend Ghirardelli or Nestlé Toll House for a delightful fudge.
How do I store leftover Marshmallow Swirl Fudge?
To keep your fudge fresh, store it in an airtight container at room temperature for up to 1 week. If you prefer longer storage, place it in the refrigerator for up to 2 weeks. Make sure it’s well-wrapped or sealed to prevent it from absorbing any odors. It’s still delicious chilled, but I often enjoy it best at room temperature for that soft, creamy texture!
Can I freeze Marshmallow Swirl Fudge?
Absolutely! Freezing is a great option if you want to enjoy the fudge later. Cut the fudge into squares, then place them in an airtight container with layers separated by parchment paper to prevent sticking. You can freeze it for up to 3 months. When you’re ready to indulge, just thaw it in the refrigerator overnight for the best texture.
What should I do if my fudge is too soft?
If your fudge turns out too soft, it may need more chilling time—sometimes, it just needs a little patience! Place it back in the refrigerator for an additional 30–60 minutes, which often does the trick. Additionally, ensure your chocolate-coconut mixture was heated gently; if overheated, it might not set well. Lastly, try adding a bit more chocolate to the next batch for a firmer result.
Is this recipe suitable for people with dietary restrictions?
Very! To make your Marshmallow Swirl Fudge dairy-free, substitute the semi-sweet chocolate chips with dairy-free alternatives and use coconut condensed milk instead of sweetened condensed milk. Always double-check the labels for allergens since some chocolate chips could contain traces of dairy. This way, everyone can enjoy a slice of this delightful fudge!
Can pets enjoy this fudge too?
No, chocolate is toxic to pets, especially dogs and cats. Please keep your Marshmallow Swirl Fudge away from furry friends! It’s best to treat them with pet-safe snacks so they don’t miss out on the fun.

Decadent Marshmallow Swirl Fudge That's Easy to Make
Ingredients
Equipment
Method
- In a medium saucepan, over low heat, combine semi-sweet chocolate chips, sweetened condensed milk, and unsalted butter. Stir continuously for about 5–7 minutes, until smooth and glossy.
- Stir in the vanilla extract and a pinch of salt into the chocolate mixture. Mix well to incorporate these flavor enhancers.
- Line an 8x8-inch baking dish with parchment paper. Pour the warm chocolate mixture into the prepared dish and spread it evenly.
- Drop spoonfuls of marshmallow fluff over the chocolate layer and swirl gently with a knife or skewer, keeping the ribbons of marshmallow intact.
- Chill in the refrigerator for a minimum of 2 hours or until firm to the touch.
- Lift the fudge out using the parchment paper overhang and slice into squares or rectangles for serving.

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