As I prepared to satisfy a sweet tooth craving, I stumbled upon the memory of my grandmother’s kitchen—filled with laughter, love, and the irresistible scent of her famous Marshmallow Swirl Fudge. This rich, creamy delight isn’t just a recipe; it’s a piece of nostalgia that takes me back to family gatherings where slices of this magical fudge vanished in seconds. Best of all, it’s incredibly easy to whip up, requiring just under 20 minutes of active cooking time, making it perfect for last-minute potlucks or indulgently sweet afternoons. Imagine the joy of presenting this eye-catching treat at your next gathering, where everyone’s taste buds will sing. Are you ready to create your very own batch of this delightful fudge?

Why is Marshmallow Swirl Fudge So Special?
Nostalgic flavors make this fudge a beautiful reminder of sweet family memories, enveloping you in warmth with every bite. Quick and easy to prepare, you’ll be amazed at how a handful of ingredients can transform into such a luscious treat in less than 20 minutes. Crowd-pleasing and visually stunning, it’s the perfect dessert to share at gatherings. Endless variations allow you to customize this fudge with your favorite chocolate, extracts, or even nuts. Why not try it alongside our delightful Peppermint Swirl Cookies to make your sweet spread even more inviting? Whether for holidays or everyday delights, this fudge is sure to steal the show!
Marshmallow Swirl Fudge Ingredients
• Get ready to create this delightful treat with these simple ingredients!
For the Fudge Base
- Sweetened Condensed Milk – Provides essential creaminess and sweet flavor; you can use evaporated milk for a lower-sugar alternative.
- Chocolate Chips – Adds the rich, chocolaty base; consider using dark chocolate chips for a deeper flavor.
- Butter – Ensures smooth blending and adds richness; margarine can replace it for a dairy-free option.
For the Swirl
- Mini Marshmallows – Infuses the fudge with gooey pockets of sweetness; marshmallow fluff can be substituted—just use about 1 cup!
- Pure Vanilla Extract – Elevates flavor, making it more aromatic; opt for pure extract for the best taste.
Get ready to bring your family together with this Marshmallow Swirl Fudge; it’s a dessert that wraps you in memories and sweetness!
Step‑by‑Step Instructions for Marshmallow Swirl Fudge
Step 1: Prepare the Baking Pan
Begin by lining an 8×8-inch square baking pan with parchment paper, ensuring it hangs over the edges for easy removal later. This step is crucial for a fuss-free release of your delightful Marshmallow Swirl Fudge. Preheat your kitchen with excitement as you gather the ingredients—this treat is just around the corner!
Step 2: Melt the Base Ingredients
In a medium saucepan over low heat, combine the sweetened condensed milk, chocolate chips, and butter. Stir continuously for about 5 minutes, watching as the chocolate melts and transforms into a smooth, glossy mixture. This magical moment creates the rich fudge base that will hold all the delightful flavors together!
Step 3: Add the Flavor
Once your mixture is smooth and well blended, remove the saucepan from the heat. Stir in the pure vanilla extract, allowing the warm fudge to absorb its aromatic goodness. The enticing scent of vanilla will fill your kitchen, amplifying the nostalgic feel of your Marshmallow Swirl Fudge.
Step 4: Fold in Mini Marshmallows
Next, quickly fold in the mini marshmallows, gently mixing them into the fudge until they’re just swirled, but not completely melted. This step is crucial to achieve that signature texture, with pockets of gooey marshmallow contrasting against the rich chocolate base.
Step 5: Transfer to the Pan
Carefully pour the fudge mixture into your prepared baking pan, using a spatula to spread it evenly. As you do this, swirl the top slightly with a dollop of the fudge mixture to expose some marshmallows. Your Marshmallow Swirl Fudge is taking shape, promising to be as beautiful as it is delicious!
Step 6: Cool and Set
Allow the fudge to cool at room temperature for about 10 minutes. Then, refrigerate for at least 2 hours until completely set. This cooling time is essential for the fudge to firm up and develop its rich, creamy texture. Resist the temptation to sneak a taste, as the best is yet to come!
Step 7: Slice and Serve
Once your fudge has set, lift it out of the pan using the parchment overhang. Use a sharp, buttered knife to slice it into 16 squares for even pieces. The stunning appearance of swirled marshmallows and glossy fudge will have everyone eager to enjoy your Marshmallow Swirl Fudge creation.

Expert Tips for Marshmallow Swirl Fudge
- Cool Properly: Allow the fudge to set in the refrigerator for at least 2 hours; this ensures it firms up for that perfect texture.
- Neat Slicing: Use a buttered knife when slicing to achieve clean edges, preventing the fudge from sticking to the blade.
- Storage Secrets: Wrap tightly in parchment, then in plastic wrap; this keeps your Marshmallow Swirl Fudge fresh for up to 7 days.
- Customize Flavors: Experiment with flavored extracts or chocolate types; swapping dark chocolate can offer a richer taste—just adjust sweetness if desired.
- Avoid Melting Marshmallows: Fold in the mini marshmallows gently and quickly to keep their luscious texture intact and avoid complete melting.
Make Ahead Options
Making Marshmallow Swirl Fudge ahead of time is a fantastic way to save precious minutes during busy weeks! You can prepare the fudge base and refrigerate it for up to 3 days before incorporating the marshmallows. Simply melt the sweetened condensed milk, chocolate chips, and butter, let it cool, and store it in an airtight container. When you’re ready to finish, gently reheat the base if necessary, fold in the mini marshmallows, and pour it into the pan—just as delicious as fresh! By prepping in advance, you’ll have this indulgent treat ready at a moment’s notice for gatherings or cozy evenings at home.
Marshmallow Swirl Fudge Variations
Feel free to explore your creativity with these delightful twists and substitutions that can make your fudge truly unique!
- Dairy-Free: Replace butter with margarine and ensure chocolate chips are dairy-free for a creamy fudge without dairy.
- Nutty Delight: Add chopped nuts like walnuts or pecans for a satisfying crunch that complements the soft marshmallow swirls.
- Fruit Infusion: Mix in dried fruits like cranberries or cherries for a burst of tartness that pairs beautifully with the chocolate.
- Flavor Boost: Swap vanilla extract for almond or peppermint extract to create a completely different flavor profile; think holiday cheer with peppermint!
- Chocolate Variations: Use white chocolate chips for a lighter fudge that pairs stunningly with vibrant colors from mix-ins or toppings.
- Spiced Fudge: Incorporate a pinch of cinnamon or nutmeg to warm up the flavors—perfect for cozy gatherings or festive celebrations.
- Gourmet Touch: Drizzle melted chocolate or caramel on top before refrigerating; this enhances flavor and creates a lavish presentation.
- Mini Treats: Pour the fudge mixture into mini muffin cups to create bite-sized treats, perfect for sharing or party favors.
As you make your own Marshmallow Swirl Fudge, I encourage you to also try our rich and festive Peppermint Swirl Cookies to add a cheerful touch to your dessert table! Your guests will love experimenting with different flavors, so let those culinary instincts shine!
How to Store and Freeze Marshmallow Swirl Fudge
- Room Temperature: Keep the fudge in an airtight container at room temperature for up to 3 days; this is perfect for short-term enjoyment.
- Fridge: Wrap the fudge tightly in parchment paper and then plastic wrap; it stays fresh in the fridge for up to 7 days, perfect for that late-night sweet craving.
- Freezer: For longer storage, freeze the fudge by layering it between parchment paper in an airtight container; it can be kept for up to 3 months without losing quality.
- Reheating: If it’s solid from freezing, simply let it thaw in the fridge overnight before serving—no need to reheat! Enjoy your delicious Marshmallow Swirl Fudge whenever the craving strikes!
What to Serve with Marshmallow Swirl Fudge?
As you prepare to delight with the lusciousness of fudge, consider these sweet companions to elevate your dessert experience.
- Fresh Berries: The tartness of berries provides a refreshing contrast to the rich fudge, brightening each bite.
- Vanilla Ice Cream: Scoop creamy vanilla ice cream alongside to create a delightful balance of hot and cold textures, enhancing the fudge’s sweetness.
- Espresso or Coffee: A strong cup of coffee or espresso can elevate your chocolate treat, as the bitterness beautifully complements its sweetness.
- Chocolate Drizzle: A simple drizzle of chocolate sauce on top adds an extra layer of indulgence, perfect for chocolate lovers looking for more!
- Nuts or Sea Salt: Finish pieces with a sprinkle of chopped nuts or sea salt for a crunchy texture and a hint of savory balance to the sweet fudge.
- Milk or Hot Chocolate: Pair with cold milk or a warm mug of hot chocolate for a truly comforting treat, especially on chilly days.
- Marshmallow Fluff Dip: Set out a bowl of marshmallow fluff for an interactive element where each piece can be dunked for added gooeyness.
- Gourmet Tea: A fragrant cup of herbal or chai tea can provide a soothing backdrop, allowing the fudge flavors to shine through while you enjoy your treat.

Marshmallow Swirl Fudge Recipe FAQs
What type of chocolate chips is best for Marshmallow Swirl Fudge?
Absolutely, using semi-sweet chocolate chips will yield a balanced sweetness, while dark chocolate chips provide a more intense, rich flavor. If you’re looking for a milder taste, milk chocolate chips would work beautifully as well.
How do I store leftover Marshmallow Swirl Fudge?
To keep your fudge fresh, wrap it tightly in parchment paper and then in plastic wrap. Store it in the refrigerator for up to 7 days. This ensures that the fudge remains delicious and ready for whenever a sweet craving hits!
Can I freeze Marshmallow Swirl Fudge?
Yes, you can freeze it! Layer the fudge between sheets of parchment paper in an airtight container. It will stay fresh in the freezer for up to 3 months. When you’re ready to enjoy, simply thaw it in the fridge overnight—no need to reheat!
What if my fudge isn’t setting properly?
If you find that your fudge hasn’t set as expected, it could be due to undercooking the base. Ensure that the mixture is melted thoroughly and combined well. You can also try putting it back in the refrigerator for a longer period—sometimes, extra cooling is all it needs!
Are there any allergy considerations for this recipe?
If you’re accommodating allergies, consider using dairy-free products like margarine in place of butter and ensuring chocolate chips are dairy-free. Keep an eye out for cross-contamination, especially with marshmallows, if nut allergies are a concern. Always double-check your ingredient labels!
Can I modify the recipe for dietary preferences?
Certainly! You can use gluten-free marshmallows and chocolate chips. For a lower sugar option, substituting dark chocolate chips for sweetened chocolate will give you that delicious chocolate flavor while cutting down on sweetness. Feel free to experiment with different extracts or by adding nuts for an extra texture!

Irresistible Marshmallow Swirl Fudge You’ll Love to Share
Ingredients
Equipment
Method
- Prepare the Baking Pan: Line an 8x8-inch square baking pan with parchment paper.
- Melt the Base Ingredients: In a medium saucepan over low heat, combine sweetened condensed milk, chocolate chips, and butter. Stir for about 5 minutes until smooth.
- Add the Flavor: Remove the saucepan from heat and stir in the vanilla extract.
- Fold in Mini Marshmallows: Quickly fold in the mini marshmallows until just swirled.
- Transfer to the Pan: Pour the fudge mixture into the prepared pan and spread evenly.
- Cool and Set: Allow to cool at room temperature for about 10 minutes, then refrigerate for at least 2 hours.
- Slice and Serve: Lift out of the pan, slice into 16 squares, and enjoy!

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