Irresistible Marshmallow Swirl Fudge Recipe
If you love the magic combination of rich chocolate and sweet, creamy marshmallow, then this Irresistible Marshmallow Swirl Fudge is about to become your new go-to treat. Each bite delivers a fudgy chocolate base with beautiful ribbons of marshmallow, making it as stunning to look at as it is delicious to eat. Whether you’re prepping for the holidays, a bake sale, or just a cozy night in, this recipe is your secret weapon for creating shareable moments and pure joy—no candy thermometer or baking skills needed!

Ingredients You’ll Need
This recipe comes together with just a handful of simple ingredients, each one playing a critical role in creating the decadent texture and balanced flavor of Irresistible Marshmallow Swirl Fudge. Don’t underestimate the power of basic pantry staples when it comes to handmade fudge!
- Semi-sweet chocolate chips: These form the luxurious, chocolatey base and melt smoothly for the perfect consistency.
- Sweetened condensed milk: Just one can gives the fudge its signature creamy texture and perfectly rich sweetness.
- Unsalted butter: Melted butter adds richness and helps the fudge melt in your mouth with every bite.
- Pure vanilla extract: A splash of vanilla enhances all the chocolate flavors and adds a lovely aroma.
- Salt: Just a pinch helps balance out the sweetness and deepens the chocolate taste.
- Marshmallow fluff (or marshmallow cream): This is what creates those irresistible, stunning swirls throughout the fudge.
How to Make Irresistible Marshmallow Swirl Fudge
Step 1: Prepare Your Baking Dish
Start by lining an 8×8-inch baking dish with parchment paper. Let the paper hang over the sides a bit—this is your secret to easy fudge removal later on! The parchment not only prevents sticking but also makes cutting the finished fudge a breeze.
Step 2: Melt the Chocolate Mixture
In a medium saucepan, add your chocolate chips, sweetened condensed milk, and melted butter. Warm everything over low heat, stirring constantly. Within just 3 to 5 minutes, you’ll see the ingredients meld into a gorgeous, velvety chocolate mixture. Remove from the heat and quickly stir in the vanilla extract and salt for that perfect flavor finish.
Step 3: Spread into the Pan
Pour the warm fudge mixture into your prepared baking dish. Use a spatula to spread it out evenly—this sets a smooth, chocolatey canvas for your marshmallow masterpiece.
Step 4: Create the Marshmallow Swirl
Time for the fun part! Drop spoonfuls of marshmallow fluff randomly over the surface of the fudge. Grab a knife and gently swirl the marshmallow into the chocolate, making sure not to overdo it. The goal is to achieve those Insta-worthy ripples of white and brown, not a fully mixed fudge.
Step 5: Chill Until Set
Pop the pan into the fridge and let it chill for at least 2 hours. Once the fudge is firm, lift it out using the parchment overhang, then slice into neat squares. Get ready for oohs, aahs, and maybe a happy dance or two—Irresistible Marshmallow Swirl Fudge always wows!
How to Serve Irresistible Marshmallow Swirl Fudge

Garnishes
This fudge can shine all on its own, but a sprinkle of flaky sea salt, a light dusting of cocoa powder, or even a few mini marshmallows on top can take things up a notch. For parties, a drizzle of melted chocolate or some colorful sprinkles can add a festive flair to each piece of Irresistible Marshmallow Swirl Fudge.
Side Dishes
If you’re planning a dessert table, complement your fudge with a platter of fresh berries, bowls of vanilla ice cream, or a tray of crisp, buttery shortbread cookies. The creamy sweetness of the fudge pairs beautifully alongside coffee, espresso, or even a mug of hot chocolate for a lactose-lover’s dream treat.
Creative Ways to Present
Package squares of Irresistible Marshmallow Swirl Fudge in parchment paper or clear cellophane bags tied with a ribbon for the ultimate homemade gift. For parties, arrange the pieces in mini cupcake liners on a tiered stand, or stack them in a mason jar with a handwritten tag—guaranteed to make any occasion special (and delicious).
Make Ahead and Storage
Storing Leftovers
Store squares of fudge in an airtight container at room temperature for up to one week. If your kitchen runs warm, move the container into the fridge for best results—the fudge will stay firm and the swirls will remain picture-perfect.
Freezing
Fudge is made for make-ahead magic! Wrap individual pieces in plastic wrap, pop them into a freezer-safe bag, and stash away for up to three months. When you’re ready for a treat, just let pieces thaw at room temperature for about an hour.
Reheating
Most folks love Irresistible Marshmallow Swirl Fudge straight from the fridge, but if you want extra gooeyness, pop a square onto a plate and microwave it for just 5-10 seconds. It’ll get just warm enough to intensify the fudge’s melt-in-your-mouth texture—pure bliss!
FAQs
Can I use milk chocolate chips instead of semi-sweet?
Absolutely! Milk chocolate chips will make your fudge a touch sweeter and a bit creamier. Feel free to substitute based on your chocolate preferences—the method stays exactly the same.
What if I can’t find marshmallow fluff?
If marshmallow fluff isn’t available, marshmallow cream is a perfect substitute. In a pinch, you can gently melt mini marshmallows with a splash of corn syrup to create a swirlable consistency.
Can I double the recipe for a bigger crowd?
Yes, doubling is easy. Simply prepare the recipe as written, but use a 9×13-inch pan and extend the chilling time slightly to ensure the thicker fudge sets firmly.
Does this fudge travel well for gifts or potlucks?
It sure does! When packed in an airtight tin or wrapped snugly in parchment, the fudge can withstand car rides and room temperature events with zero fuss—making it a star at any gathering.
What’s the best way to cut the fudge for clean squares?
For sharp, bakery-style squares, use a large chef’s knife warmed under hot water and wiped dry between cuts. Press down firmly (don’t drag), and you’ll achieve those perfect pieces every time.
Final Thoughts
If you’re ready to brighten someone’s day or simply treat yourself, this Irresistible Marshmallow Swirl Fudge is always a wonderful choice. It’s easy, fun, and delivers that wow-factor every single time. Give it a try—you might just find yourself making it again and again!
PrintIrresistible Marshmallow Swirl Fudge Recipe
Indulge in the decadent delight of this Irresistible Marshmallow Swirl Fudge. Rich chocolate fudge with a delightful swirl of marshmallow, this treat is perfect for satisfying your sweet cravings.
- Prep Time: 15 minutes
- Cook Time: 5 minutes
- Total Time: 2 hours 20 minutes
- Yield: 16 squares 1x
- Category: Dessert
- Method: Mixing, Chilling
- Cuisine: American
- Diet: Vegetarian
Ingredients
For the Fudge:
- 2 cups (12 oz) semi-sweet chocolate chips
- 1 can (14 oz) sweetened condensed milk
- 2 tablespoons unsalted butter, melted
- 1 teaspoon pure vanilla extract
- ¼ teaspoon salt
For the Swirl:
- 1 cup marshmallow fluff or marshmallow cream
Instructions
- Prepare the Baking Dish: Line an 8×8-inch baking dish with parchment paper, leaving some overhang for easy removal later.
- Melt Ingredients: In a saucepan over low heat, melt chocolate chips, sweetened condensed milk, and butter. Stir until smooth, then remove from heat and mix in vanilla extract and salt.
- Spread the Fudge: Pour the chocolate mixture into the prepared dish and spread evenly.
- Add the Swirl: Drop spoonfuls of marshmallow fluff on top of the chocolate and swirl gently with a knife.
- Chill and Serve: Refrigerate the fudge for at least 2 hours until set. Cut into squares and enjoy!
Nutrition
- Serving Size: 1 square
- Calories: 190
- Sugar: 19g
- Sodium: 65mg
- Fat: 9g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 27g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 10mg
Keywords: Fudge, Marshmallow, Chocolate, Dessert, Sweet