As I stirred the rich chocolate mixture in my saucepan, an irresistible aroma filled the kitchen, pulling me back to my childhood. There’s something magical about crafting my very own No-Bake Marshmallow Swirl Fudge—soft, creamy, and simply delightful. This easy dessert combines velvety chocolate with sweet, gooey ribbons of marshmallow, making it the perfect no-fuss treat for any gathering or just a cozy night in. Not only is it perfect for satisfying a chocolate craving, but it also comes together in no time, allowing you to whip up a sweet surprise whenever the mood strikes. Ready to discover how to make this luscious fudge and bring some bliss into your life?

Why is Marshmallow Swirl Fudge a must-try?
Irresistible Flavor: Each piece of this fudge is a delightful fusion of rich chocolate and sweet marshmallow that tantalizes your taste buds.
No-Bake Convenience: With no baking required, you can prepare this easy dessert in just minutes, making it perfect for busy weeknights or last-minute gatherings.
Perfect for Sharing: Whether you’re hosting a party or enjoying a family night, this fudge brings a crowd-pleasing charm that everyone will love.
Customize to Your Taste: Feel free to experiment—add extra chocolate or even some crushed cookies to make it your own! For more sweet inspiration, check out my Chocolate Marshmallow Swirl Cookies.
Childhood Nostalgia: This treat is bound to evoke those heartwarming memories of childhood, bringing joy to both young and old alike.
Get ready to dive into a world of chocolatey goodness with each luscious bite!
Marshmallow Swirl Fudge Ingredients
• Here’s everything you’ll need to create this dreamy treat!
For the Fudge Base
- Semi-Sweet Chocolate Chips – The key ingredient responsible for the rich chocolate flavor; feel free to swap with dairy-free chocolate for a suitable option.
- Sweetened Condensed Milk – This acts as the binding agent, giving the fudge its creamy texture; coconut condensed milk works if you’re looking for a dairy-free alternative.
- Unsalted Butter – Adds creaminess and a lovely glossy finish; for a dairy-free twist, opt for dairy-free butter instead.
- Vanilla Extract – Enhances the overall flavor profile; a high-quality extract makes all the difference!
- Salt – Just a pinch will balance the sweetness and elevate the chocolate flavor.
For the Marshmallow Swirl
- Marshmallow Fluff (or Cream) – The magic ingredient that creates those delightful gooey swirls; avoid mini marshmallows as they lose their shape when mixed in.
Now you’re all set to create a decadent Marshmallow Swirl Fudge that will surely become a family favorite!
Step‑by‑Step Instructions for Marshmallow Swirl Fudge
Step 1: Melt Ingredients
In a medium saucepan over low heat, combine semi-sweet chocolate chips, sweetened condensed milk, and unsalted butter. Stir constantly for about 5-7 minutes, ensuring the mixture becomes smooth and glossy without burning. Once melted, remove the saucepan from the heat and watch as the chocolate mixture transforms into a luscious base for your Marshmallow Swirl Fudge.
Step 2: Combine Flavors
After taking the saucepan off the heat, add in the vanilla extract and a pinch of salt. Stir the mixture gently for another minute until the flavors meld together beautifully. This step enhances the overall taste and balances the sweetness of the fudge, creating a rich flavor profile that makes the fudge extra special.
Step 3: Prepare Dish
Line an 8×8-inch baking dish with parchment paper, leaving some overhang for easy removal later. Pour the chocolate mixture into the prepared dish, using a spatula to spread it evenly across the bottom. This will create a solid base for your Marshmallow Swirl Fudge, ensuring each bite is packed with that decadent chocolate flavor.
Step 4: Swirl Marshmallow
Spoon dollops of marshmallow fluff all over the chocolate base, distributing it evenly but not covering it entirely. Take a butter knife and gently swirl the marshmallow through the chocolate, creating beautiful ribbons. Be careful not to overmix; you want those lovely swirls to remain visible for the perfect visual appeal.
Step 5: Chill
Place the baking dish in the refrigerator and allow the fudge to chill for at least 2 hours, or until it is fully set and firm to the touch. As it chills, the fudge will develop that creamy texture and the marshmallow swirls will become wonderfully gooey, resulting in a delightful treat when you’re ready to serve.
Step 6: Serve
Once the fudge has set, carefully lift it out of the baking dish using the parchment paper edges. Place it on a cutting board and slice it into squares. The presentation should showcase the beautiful layers of chocolate and marshmallow, making your Marshmallow Swirl Fudge both a treat for the eyes and the taste buds. Enjoy this luscious dessert!

Marshmallow Swirl Fudge Variations
Feel free to make this Marshmallow Swirl Fudge your own by exploring these delicious variations!
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Dairy-Free Delight: Swap in dairy-free chocolate and coconut condensed milk for a creamy, dairy-free version that everyone can enjoy.
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Extra Chocolatey: Boost the chocolate flavor by mixing in ½ cup of chopped dark chocolate before you add the marshmallow fluff. The more chocolate, the merrier!
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Nutty Crunch: Stir in chopped nuts or crushed cookies like graham crackers for a delightful crunch that contrasts beautifully with the smooth fudge. It adds a wonderful texture twist!
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S’mores Fudge: For a fun twist, create a graham cracker base before pouring in the fudge. Top with mini marshmallows for that nostalgic s’mores experience—perfect for campfire vibes even indoors!
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Flavor Infusion: Add a teaspoon of peppermint extract for a refreshing twist, making it a festive treat for the holidays. This version is sure to delight any mint lover!
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Spicy Kick: Add a pinch of cayenne pepper or cinnamon for a subtle heat that perfectly contrasts the sweetness. It’s an adventurous flavor combination that will intrigue guest palates.
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Fruit Swirl: Incorporate a layer of fruit preserves—think raspberry or cherry—before swirling in the marshmallow fluff; it brings an exciting fruity surprise to each bite.
Don’t forget to check out my Chocolate Marshmallow Swirl Cookies for even more creative dessert ideas!
Expert Tips for Marshmallow Swirl Fudge
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Choose Quality Ingredients: The flavor of your Marshmallow Swirl Fudge will depend on the quality of chocolate and vanilla extract you use. Opt for semi-sweet chocolate chips and real vanilla for the best results.
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Control the Heat: Be careful not to overheat the ingredients when melting. Stir constantly over low heat to avoid burning the chocolate; gentler cooking results in a creamy texture.
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Mind the Swirls: When swirling in the marshmallow fluff, do so gently. Overmixing will cause the marshmallow to disappear into the chocolate, losing those distinct ribbons you want.
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Let It Set: Ensure the fudge chills completely for at least 2 hours before cutting. This is crucial for a clean cut and perfect presentation!
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Experiment with Toppings: Have fun customizing your fudge! Consider adding a sprinkle of sea salt on top or incorporating crushed cookies for added texture and flavor.
What to Serve with No-Bake Marshmallow Swirl Fudge
Indulging in creamy, chocolatey goodness is just the beginning—let’s build a mouthwatering meal around it!
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Fresh Berries: The tartness of raspberries or strawberries contrasts beautifully with the sweetness of the fudge, adding a refreshing element. A handful of berries can brighten up your dessert plate, making it visually appealing as well.
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Vanilla Ice Cream: A scoop of velvety vanilla ice cream pairs perfectly with the fudge, enhancing its rich chocolate flavor. The cool creaminess provides a delightful contrast to the fudge’s soft texture.
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Nutty Caramel Sauce: Drizzling homemade or store-bought caramel sauce adds an extra layer of sweet, nutty flavor. This warm, rich one-two punch can elevate the fudge into a truly gourmet experience.
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Chocolate Chip Cookies: Serve alongside freshly baked chocolate chip cookies for a delightful combination. The chewy texture of the cookies contrasts with the velvety fudge, creating a satisfying dessert duo.
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Espresso Coffee: A bold cup of espresso enhances the flavors of chocolate and marshmallow, making each bite of fudge even more decadent. The bitterness of the coffee balances the sweetness perfectly, providing a warm, inviting experience.
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Whipped Cream: A dollop of freshly whipped cream adds lightness to the rich fudge. Its airy texture and subtle sweetness create a lovely balance, making this an irresistible treat for any occasion.
How to Store and Freeze Marshmallow Swirl Fudge
Fridge: Store your Marshmallow Swirl Fudge in an airtight container in the fridge for up to 2 weeks. This keeps the fudge soft and the marshmallow swirls gooey.
Freezer: For longer storage, freeze the fudge wrapped tightly in plastic wrap and then aluminum foil for up to 3 months. When ready to enjoy, let it thaw in the fridge overnight.
Room Temperature: If you prefer to keep the fudge at room temperature, ensure it’s in a cool, dry place and consume within 5 days for the best taste and texture.
Reheating: If the fudge becomes too firm after refrigeration, allow it to come to room temperature for about 15-20 minutes before serving for optimal softness.
Make Ahead Options
These Marshmallow Swirl Fudge squares are perfect for busy home cooks looking to save time! You can prepare the fudge base up to 3 days in advance. Simply follow the initial melting and combining steps, then spread the chocolate mixture into the lined baking dish and refrigerate it, covered with plastic wrap. When you’re ready to finish, simply swirl in the marshmallow fluff and let it chill again for at least 2 hours until set. This way, you’ll have delicious, creamy fudge at your fingertips without any last-minute rush. Just be sure to store any leftovers in an airtight container in the refrigerator to keep the fudge fresh and maintain its soft texture!

Marshmallow Swirl Fudge Recipe FAQs
How do I choose the best chocolate for my fudge?
Absolutely! For the best flavor, I recommend using high-quality semi-sweet chocolate chips. Look for those with a high cocoa content, ideally around 60% or more, as they provide a rich and deep chocolate flavor. If you need a dairy-free option, you can substitute with dairy-free chocolate, which works beautifully in this recipe too!
How should I store leftover fudge?
After making your delicious Marshmallow Swirl Fudge, store it in an airtight container in your refrigerator for up to 2 weeks. This will keep the fudge soft and maintain the gooey marshmallow swirls that make it extra delightful. If you prefer it at room temperature, ensure you consume it within 5 days for the best taste and texture.
Can I freeze my fudge, and if so, how?
Absolutely! To freeze your Marshmallow Swirl Fudge, wrap pieces tightly in plastic wrap, then place them in a resealable freezer bag or airtight container. Properly stored, it can last up to 3 months in the freezer. When you’re ready to enjoy, simply transfer it to the fridge the night before to thaw it slowly and comfortably—you’ll love the texture when you take your first bite!
What if my fudge doesn’t set properly?
No worries! If your fudge isn’t setting, it may not have been cooked long enough. The mixture needs to reach a smooth and glossy consistency for it to solidify correctly. If that happens, you can gently reheat it on low heat and try the process again, ensuring to stir constantly. If it still refuses to set, consider pouring it into a saucepan, reheating, and adding a tiny bit of additional sweetened condensed milk before reshaping and refrigerating again.
Are there any dietary considerations for this fudge?
Yes, indeed! To cater to dietary restrictions, you can easily make dairy-free Marshmallow Swirl Fudge by using dairy-free chocolate chips, coconut condensed milk, and dairy-free butter. Always check the marshmallow fluff too, as some brands may contain allergens. For nut allergies, make sure no nuts are introduced in any of the added toppings or variations you decide to include!
Can I customize this fudge with different ingredients?
Very much so! This fudge is super versatile. Feel free to mix in additional ingredients like crushed nuts, chocolate chunks, or even a sprinkle of sea salt on top for a delightful contrast. You can also play with flavorings by adding a splash of peppermint or almond extract to the chocolate for a different twist. The more the merrier!

Decadent Marshmallow Swirl Fudge That Melts in Your Mouth
Ingredients
Equipment
Method
- In a medium saucepan over low heat, combine semi-sweet chocolate chips, sweetened condensed milk, and unsalted butter. Stir constantly for about 5-7 minutes, ensuring the mixture becomes smooth and glossy without burning.
- After taking the saucepan off the heat, add in the vanilla extract and a pinch of salt. Stir the mixture gently for another minute until the flavors meld together beautifully.
- Line an 8x8-inch baking dish with parchment paper, leaving some overhang for easy removal later. Pour the chocolate mixture into the prepared dish, using a spatula to spread it evenly across the bottom.
- Spoon dollops of marshmallow fluff all over the chocolate base and gently swirl it through the chocolate, creating beautiful ribbons.
- Place the baking dish in the refrigerator and allow the fudge to chill for at least 2 hours, or until fully set and firm to the touch.
- Once the fudge has set, carefully lift it out of the baking dish using the parchment paper edges and slice it into squares.

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