As I stood in my kitchen, yearning for a quick sweet escape, my eyes landed on a jar of marshmallow fluff. Suddenly, inspiration struck! This No-Bake Marshmallow Swirl Fudge was calling to me, promising the kind of indulgence that doesn’t require an oven or lengthy preparation. In just minutes, I could have rich, creamy chocolate fudge swirled with gooey marshmallow goodness, right in my own home. Not only is this treat a delightful way to satisfy your sweet tooth, but it also offers the flexibility of customizing toppings and variations to fit any craving. Who wouldn’t love a slice of nostalgia wrapped in chocolatey bliss? Ready to indulge in this easy and satisfying dessert? Let’s dive in!

Why is Marshmallow Swirl Fudge Irresistible?
Simplicity, this No-Bake Marshmallow Swirl Fudge is incredibly easy to whip up in just minutes! Decadent, with a rich and creamy chocolate base, it’s an indulgent treat that satisfies any sweet tooth. Customizable, feel free to mix in toppings or try variations like a s’mores twist. Versatile, it’s perfect for gatherings, parties, or even a quiet night in. Crowd-Pleasing, the delightful combination of chocolate and marshmallow will leave everyone asking for seconds! Don’t forget to check out our extra chocolatey version for an indulgent twist!
Marshmallow Swirl Fudge Ingredients
Discover the simple components that bring this Marshmallow Swirl Fudge to life!
For the Fudge
- Semi-Sweet Chocolate Chips – Your primary flavor base; dark chocolate can be used for a richer experience.
- Sweetened Condensed Milk – Adds creaminess and sweetness; coconut condensed milk works for a dairy-free option.
- Unsalted Butter – Contributes to the buttery richness and smooth texture; swap for dairy-free butter to make it vegan.
- Vanilla Extract – Enhances the overall flavor; a must-have for that warm touch.
- Salt – Balances the sweetness and intensifies flavor; absolutely essential!
For the Marshmallow Swirl
- Marshmallow Fluff – Creates those gooey swirls that make this fudge irresistible; mini marshmallows can be used for a chunkier texture, but fluff offers the smoothest ribbons.
Feel ready to dive into making this delectable dessert? Let’s get swirling!
Step‑by‑Step Instructions for Marshmallow Swirl Fudge
Step 1: Melt the Chocolate Mixture
In a medium saucepan, combine 2 cups of semi-sweet chocolate chips, one 14-ounce can of sweetened condensed milk, and 2 tablespoons of unsalted butter. Set this saucepan over low heat, stirring constantly for about 5–7 minutes, until the mixture is completely smooth and glossy. This forms the rich base for your Marshmallow Swirl Fudge.
Step 2: Add Flavorings
Once your chocolate mixture is silky and melted, remove it from the heat. Stir in 1 teaspoon of vanilla extract and a pinch of salt, mixing well until fully combined. This step enhances the flavor profile of your fudge, balancing its sweetness with a touch of warmth.
Step 3: Prepare Pan
Line an 8×8-inch baking dish with parchment paper, allowing some overhang to make removal easier later. This prevents sticking and ensures your Marshmallow Swirl Fudge comes out perfectly. Make sure the parchment is smooth against the sides for even fudge distribution.
Step 4: Spread Fudge
Pour the smooth chocolate mixture into the prepared dish and use a spatula to evenly spread it out into all corners. Aim for a level surface to ensure uniform cuts once set. The fudge should appear glossy, showcasing its delightful chocolate richness.
Step 5: Add Marshmallow Fluff
Dollop spoonfuls of 1 cup of marshmallow fluff on top of the chocolate layer. Using a knife, gently swirl the fluff into the fudge without overmixing. The goal is to create beautiful ribbons and swirls that will give your Marshmallow Swirl Fudge its signature visual appeal.
Step 6: Chill
Refrigerate the fudge for at least 2 hours, or until it is firm to the touch. This chilling time is crucial for your fudge to set properly, allowing the textures to meld and ensuring clean cuts. You can use this time to plan your storage or enjoy a sweet moment of anticipation!
Step 7: Cut and Serve
Once chilled and set, lift the fudge out of the baking dish using the parchment paper. Place it on a cutting board and slice into squares with a sharp knife. The clean cuts will reveal the beautiful marshmallow swirls inside, ready to be savored and enjoyed by all!

Marshmallow Swirl Fudge Variations
Feel free to get creative and make this Marshmallow Swirl Fudge uniquely yours with these delightful twists!
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Dairy-Free Option: Substitute dairy-free chocolate and coconut condensed milk for a delicious vegan treat. Enjoy the same rich flavor without the dairy!
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Extra Chocolatey: Stir in ½ cup of chopped dark chocolate before swirling for an intensified chocolate experience. The added chunks create delightful bites of richness.
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Crunchy Version: Incorporate crushed cookies or nuts like pecans or almonds into the fudge for added texture. The crunchiness perfectly balances the smooth fudge and marshmallow.
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S’mores Version: Layer a graham cracker crust at the bottom of your dish before pouring in the fudge mixture. This clever twist brings all the classic s’mores flavors into each bite.
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Nutty Swirl: Add a generous dollop of nut butter, like peanut or almond, into your marshmallow fluff for a creamy nutty surprise. The nut butter swirls seamlessly into the fudge, making every bite an adventure!
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Minty Freshness: Mix in a few drops of peppermint extract before chilling for a refreshing twist. It’s a delightful way to transform your fudge into a minty chocolate dream!
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Tropical Delight: Substitute the condensed milk with coconut cream and add shredded coconut to the mixture. This creates a luscious, tropical vibe that’s simply irresistible.
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Spicy Kick: For those who love a little heat, sprinkle cayenne pepper into the fudge mix for a surprising hot-and-sweet combo. This variation is sure to be a conversation starter at your next gathering!
And when you’re ready for a bit more indulgence, don’t forget to explore our extra chocolatey variations!
What to Serve with Marshmallow Swirl Fudge
Indulging in rich, creamy chocolate fudge is a delightful experience on its own, but pairing it with complementary treats can elevate your dessert game!
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Creamy Vanilla Ice Cream: The cool, creamy texture of vanilla ice cream pairs perfectly with the rich fudge, balancing sweetness and adding a delightful chill.
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Fresh Berries: Strawberries or raspberries add a burst of acidity, cutting through the sweetness and adding a refreshing bite that tantalizes your taste buds.
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Chocolate-Covered Pretzels: The salty crunch of chocolate-covered pretzels brings a delightful contrast to the smooth fudge, providing both texture and a hint of saltiness.
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Caramel Drizzle: A warm drizzle of caramel sauce over the fudge amplifies its richness and adds an impressive, decadent touch to each square.
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Nutty Granola: Sprinkle some nutty granola on top for an unexpected crunch and complexity, adding bites of toasted nuts and oats that complement the fudge’s softness.
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Coffee or Espresso: A hot cup of coffee or a shot of espresso balances the sweetness and enhances the chocolate flavors, creating a delightful after-dinner treat.
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Whipped Cream: Light and airy whipped cream adds a lovely texture contrast, serving as a delightful base to dollop on top of each fudge piece.
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Marshmallow Hot Chocolate: For an extra-cozy dessert experience, serve your fudge with a cup of marshmallow-topped hot chocolate; it’s a match made in chocolate heaven!
How to Store and Freeze Marshmallow Swirl Fudge
Fridge: Store your leftover Marshmallow Swirl Fudge in an airtight container for up to one week. This keeps it fresh and delicious, ready for your next sweet craving.
Freezer: For longer storage, freeze the fudge in a freezer-safe container, separating layers with parchment paper. It can last for up to three months, maintaining its rich flavor and texture.
Thawing: When ready to enjoy, transfer the frozen fudge to the fridge for a few hours or at room temperature for about 30 minutes until soft enough to cut.
Reheating: If you prefer a softer texture, gently microwave a square for 10-15 seconds, but be careful not to melt it completely!
Expert Tips for Marshmallow Swirl Fudge
- Ingredient Quality: Use high-quality chocolate chips for the best flavor. This will elevate your Marshmallow Swirl Fudge, making it taste gourmet.
- Chill Time Matters: Don’t rush the chilling process; letting the fudge set for at least 2 hours creates a firmer texture, perfect for slicing.
- Swirling Technique: When adding marshmallow fluff, gently swirl to avoid overmixing. This keeps those gorgeous ribbons intact for a beautiful presentation.
- Avoid Sticking: Be generous with the parchment paper to ensure easy removal from the pan. This will save you from any messy cleanup later!
- Serving Perfection: Serve chilled to maintain the fudge’s ideal texture. It’s also helpful to warm your knife slightly before slicing for clean cuts.
Make Ahead Options
Making your Marshmallow Swirl Fudge ahead of time is a clever way to save precious minutes on hectic days. You can prepare the entire fudge up to 3 days in advance; simply follow all the steps, chill, and then store it in an airtight container in the refrigerator. For the best quality, avoid cutting the fudge until you’re ready to serve it, which helps maintain its fudgy texture. If you’re looking to enjoy it fresh whenever cravings hit, pet yourself by preparing the chocolate base and marshmallow fluff mixture, then chill overnight. When you’re ready to indulge, just swirl the fluff and let it set. You’ll have this delicious treat at your fingertips, just as delightful as when freshly made!

Marshmallow Swirl Fudge Recipe FAQs
How can I tell if my chocolate chips are fresh?
Absolutely! Check for a shiny appearance without any white spots. If they feel sticky or crumbly, it’s best to discard them. Fresh chocolate will melt smoothly without any clumping!
What’s the best way to chop chocolate if I want to use a chocolate bar instead of chips?
Very! For a smoother consistency, simply chop your chocolate bar into uniform pieces, roughly the size of chocolate chips. This ensures even melting. You can use a sharp knife to cut, or for quicker results, a food processor can be used for coarse chopping.
How do I store leftover marshmallow swirl fudge properly?
For sure! Store any leftover Marshmallow Swirl Fudge in an airtight container in the fridge for up to one week. Just make sure to let it cool completely before sealing to avoid condensation. You can also layer pieces with parchment paper to prevent sticking!
Can I freeze Marshmallow Swirl Fudge? How?
Absolutely! To freeze, cut the fudge into squares and layer them in a freezer-safe container separated by parchment paper. This will keep them from sticking together. It’s good for up to three months. When ready to eat, thaw in the fridge for a few hours or at room temperature for about 30 minutes.
What should I do if my fudge didn’t set properly?
No worries! If your fudge is too soft to cut, try placing it back in the refrigerator for a bit longer. If it’s still too gooey after a few hours, you can try melting it again gently and leading back to the stove. Stir in a bit more chocolate and condensed milk, then re-chill it, and it should firm up nicely!
Is there a way to make this fudge suitable for those with nut allergies?
Very! This Marshmallow Swirl Fudge is naturally nut-free, but always double-check your labels to ensure the chocolate chips and other ingredients are produced in a nut-free facility. This way, you can enjoy without worries!

Decadent Marshmallow Swirl Fudge for Sweet Indulgence
Ingredients
Equipment
Method
- In a medium saucepan, combine 2 cups of semi-sweet chocolate chips, one 14-ounce can of sweetened condensed milk, and 2 tablespoons of unsalted butter. Set this saucepan over low heat, stirring constantly for about 5–7 minutes, until the mixture is completely smooth and glossy.
- Once your chocolate mixture is silky and melted, remove it from the heat. Stir in 1 teaspoon of vanilla extract and a pinch of salt, mixing well until fully combined.
- Line an 8x8-inch baking dish with parchment paper, allowing some overhang to make removal easier later.
- Pour the smooth chocolate mixture into the prepared dish and use a spatula to evenly spread it out into all corners.
- Dollop spoonfuls of 1 cup of marshmallow fluff on top of the chocolate layer. Using a knife, gently swirl the fluff into the fudge without overmixing.
- Refrigerate the fudge for at least 2 hours, or until it is firm to the touch.
- Once chilled and set, lift the fudge out of the baking dish using the parchment paper. Place it on a cutting board and slice into squares with a sharp knife.

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