The first time I made Marshmallow Swirl Fudge, it felt like I had discovered a secret code to happiness. As I stirred the melting chocolate and sweetened condensed milk together, familiar aromas filled my kitchen, wrapping me in a cozy embrace that didn’t just tempt my taste buds, but tugged at my heartstrings. This recipe is a dream for anyone craving a delightful homemade treat that's quick to whip up and perfect for sharing. With just a handful of ingredients and minimal prep time, you’ll have a luscious fudge that’s as beautiful as it is delicious—ideal for gatherings or those moments when you need a little pick-me-up. So, are you ready to embark on this sweet journey and create something unforgettable? Let’s dive into the magic of fudge-making together!
Why is Marshmallow Swirl Fudge so irresistible?
Indulgent: The creamy blend of semi-sweet chocolate and sweetened condensed milk creates a rich, silky texture that melts in your mouth.
Easy to Make: With just 10 minutes of prep, this recipe is perfect even for beginner bakers. You'll be amazed at how quickly you can bring a delightful treat to life!
Swirled Perfection: The marshmallow crème infusion adds a playful touch and a touch of whimsy that delights both kids and adults alike.
Perfect for Sharing: Whether it's for a party or just a cozy night in, this fudge is ideal for bringing people together.
Lasting Enjoyment: Made in a single batch, you’ll have 36 delectable squares to satisfy cravings for days! Don't miss out on this sweet adventure.
Marshmallow Swirl Fudge Ingredients
For the Fudge Base
• 3 cups semi-sweet chocolate chips – the star ingredient, lending its rich flavor and creamy texture to the fudge.
• 1 can (14 oz) sweetened condensed milk – this ingredient is the magic that binds everything together for that perfect fudgy consistency.
• 2 tablespoons unsalted butter – adds a hint of richness; be sure to use unsalted for better control over flavor.
• 1 teaspoon pure vanilla extract – enhances the chocolate flavor and brings warmth to the fudge.
• 1 pinch salt (optional) – balances the sweetness and enhances the overall flavor profile without overwhelming.
For the Marshmallow Swirl
• 1 cup marshmallow crème – brings a delightful gooeyness and sweetness, creating that signature swirl effect in your Marshmallow Swirl Fudge!
With these simple ingredients, you're just moments away from creating a delightful treat that everyone will adore!
Step‑by‑Step Instructions for Marshmallow Swirl Fudge
Step 1: Prepare the Pan
Begin by lining an 8×8 or 9×9 inch square baking pan with parchment paper. Ensure you grease it lightly to help the fudge release easily later. This preparation is vital for a neat finish, so take your time to get it just right!
Step 2: Melt the Ingredients
In a medium saucepan, over low heat, combine 3 cups of semi-sweet chocolate chips, 1 can of sweetened condensed milk, and 2 tablespoons of unsalted butter. Stir constantly for 5-7 minutes until the mixture is smooth and glossy, then remove from heat. The chocolate should be fully melted and creamy, signifying it’s ready for the next step.
Step 3: Add Flavorings
Once removed from heat, immediately stir in 1 teaspoon of pure vanilla extract and a pinch of salt if desired. This step not only enhances the flavor of your Marshmallow Swirl Fudge but also creates a warm, inviting aroma in your kitchen. Ensure everything is combined thoroughly for a deliciously rich fudge base.
Step 4: Pour the Mixture
Carefully pour the chocolate mixture into your prepared baking pan, spreading it evenly to cover the entire base. Use a spatula to smooth out the surface, ensuring no lumps remain. This creates a beautiful foundation for the marshmallow swirl that's about to follow.
Step 5: Add Marshmallow Crème
Using a spoon, dollop 1 cup of marshmallow crème over the top of the fudge base, spacing out the dollops to create an appealing design. The marshmallow should be soft and pliable, making it easy to spoon. This step adds the delightful swirl that makes your fudge so visually tempting.
Step 6: Swirl to Perfection
With a toothpick, skewer, or butter knife, gently swirl the marshmallow crème into the chocolate. Be careful not to overmix; a few gentle strokes will give you that beautiful, marbled effect. You want to see both chocolate and marshmallow distinctly, creating a swirl that will look stunning once set.
Step 7: Chill the Fudge
Place the pan in the refrigerator and allow the fudge to chill for at least 2 hours. This step is crucial for the fudge to firm up properly, ensuring perfect slicing later. When it's done, the fudge will have a firm texture while retaining its rich flavor.
Step 8: Slice and Serve
Once chilled and firm, lift the fudge out of the pan using the parchment paper. Place it on a cutting board and slice into squares, wiping your knife clean between each cut for neat pieces. Now your delicious Marshmallow Swirl Fudge is ready to be shared and enjoyed!
What to Serve with Marshmallow Swirl Fudge
Looking to create a delightful spread that balances sweetness with savory or refreshing elements?
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Coffee or Espresso: The rich warmth of coffee enhances the chocolate flavors and provides a satisfying contrast to the fudge's sweetness. It's the perfect pairing for a cozy treat time.
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Fresh Berries: Juicy strawberries or tart raspberries cut through the richness with their vibrant acidity, offering a refreshing burst of flavor that complements the fudge's creamy texture beautifully.
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Nutty Snacks: Roasted almonds or hazelnuts bring a delightful crunch and earthy flavor that pairs well with the smoothness of the fudge. Their healthy fats also help balance the sweetness.
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Vanilla Ice Cream: A scoop of creamy vanilla ice cream creates an indulgent dessert pairing, with the cold and creamy texture contrasting beautifully against the rich, silky fudge.
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Fruit-Infused Sparkling Water: The light fizz and fruity notes of sparkling water provide a refreshing cleanse for your palate, making it easier to savor each decadent bite of fudge.
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Chocolate-Covered Pretzels: The salty crunch of pretzels dipped in chocolate adds a delightful texture and flavor contrast, making for a fun and satisfying nibble alongside your marshmallow swirl fudge.
Make Ahead Options
These Marshmallow Swirl Fudge squares are a fantastic option for meal prep, making them perfect for busy weeknights or when you need a sweet treat at a moment's notice! You can prepare the fudge base up to 24 hours in advance, melting the chocolate and mixing in the condensed milk and butter, then refrigerate it in an airtight container. Additionally, the marshmallow crème can be measured out ahead of time and stored in the refrigerator until you're ready to swirl it in. When you're ready to serve, simply take the fudge out, swirl in the marshmallow crème, and chill for at least 2 hours until firm. This method ensures your fudge stays just as delicious while saving you precious time on the day you plan to enjoy it!
How to Store and Freeze Marshmallow Swirl Fudge
Room Temperature: Store the fudge in an airtight container at room temperature for up to 3 days. It’s best enjoyed fresh, but keep it sealed to prevent it from drying out.
Fridge: For longer-lasting freshness, keep your Marshmallow Swirl Fudge in an airtight container in the fridge for up to 2 weeks. It tastes just as delicious when chilled!
Freezer: You can freeze fudge for up to 3 months. Slice into squares, layer between parchment paper in an airtight container to prevent sticking, and enjoy a decadent treat anytime.
Reheating: If you're looking to soften the fudge slightly before serving, microwave it in 10-second intervals. This helps to bring back that delightful melt-in-your-mouth texture!
Marshmallow Swirl Fudge Variations
Feel free to get creative and tailor this recipe to your taste buds; each twist opens a world of flavor!
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Nutty Delight: Add ½ cup of chopped nuts like walnuts or pecans for crunch and richness.
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Peanut Butter Swirl: Fold in ½ cup of creamy peanut butter into the chocolate mixture for a delicious twist on flavor and texture. This pairing of chocolate and peanut butter is truly irresistible!
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Minty Fresh: Stir in 1 teaspoon of peppermint extract for a refreshing, wintery flavor that’s perfect for the holidays.
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Coconut Bliss: Replace 1 cup of marshmallow crème with 1 cup of shredded coconut for a tropical touch. The crunchy coconut adds a delightful chewiness that contrasts beautifully with the smooth fudge.
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Spicy Kick: Add ¼ teaspoon of cayenne pepper to the chocolate mixture for a surprising heat that brings more depth to this indulgent treat!
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Caramel Drizzle: Drizzle melted caramel over the top before slicing for a sweet, sticky addition that takes it to another level. The combination of chocolate, marshmallow, and caramel is pure bliss!
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Dark Chocolate Version: Swap in dark chocolate chips for a richer, more complex flavor profile. Dark chocolate lovers will appreciate this elevated twist!
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Vegan Option: Use dairy-free chocolate chips and coconut milk instead of sweetened condensed milk to create a plant-based version that everyone can enjoy. This way, no one has to miss out on the fudge goodness!
Expert Tips for Marshmallow Swirl Fudge
• Quality Ingredients: Use high-quality semi-sweet chocolate chips for a richer flavor. Avoid generic brands since they may not melt as smoothly.
• Gentle Swirling: When incorporating the marshmallow crème, use a light hand. Overmixing can create a muddy look instead of beautiful swirls in your Marshmallow Swirl Fudge.
• Proper Chilling: Don’t skip the chilling step! If the fudge isn’t thoroughly chilled for at least 2 hours, it may be too soft to cut into neat squares.
• Knife Technique: For clean cuts, heat your knife in hot water, wipe it dry, and then slice the fudge. This technique helps maintain a tidy appearance for those mouthwatering squares.
• Storage Tip: Store your fudge in an airtight container in the refrigerator. It will stay fresh and indulgent for up to two weeks—if it lasts that long!
Marshmallow Swirl Fudge Recipe FAQs
What type of chocolate chips should I use for the best flavor?
Absolutely! I recommend using high-quality semi-sweet chocolate chips for the richest flavor in your Marshmallow Swirl Fudge. Brands like Ghirardelli or Guittard melt smoothly and offer a deep chocolate taste, which is essential for an indulgent dessert.
How should I store leftover fudge?
For sure! Store your Marshmallow Swirl Fudge in an airtight container at room temperature for up to 3 days. If you want it to last longer, keep it in the refrigerator for up to 2 weeks. Just make sure it's well-sealed to prevent it from drying out!
Can I freeze Marshmallow Swirl Fudge? If so, how?
Yes, you can! To freeze your fudge, first slice it into squares and layer the pieces between sheets of parchment paper in an airtight container. This prevents them from sticking together. It will remain delicious for up to 3 months. When you’re ready to enjoy, just thaw it in the fridge for a few hours.
What do I do if my fudge is too soft after chilling?
If your fudge turns out softer than you expected, it might not have chilled long enough. Make sure to give it at least 2 hours in the refrigerator. If it’s still soft, consider placing it in the freezer for about 30 minutes to firm it up. Just remember to let it sit at room temperature for a few minutes before slicing.
Is there a way to make this recipe vegan-friendly?
Certainly! To adapt your Marshmallow Swirl Fudge for a vegan diet, substitute the semi-sweet chocolate chips with a vegan variety—many brands offer delicious dark chocolate options. Replace the sweetened condensed milk with a vegan alternative (like coconut or almond milk mixed with a thickener), and use vegan butter. The marshmallow crème can be tricky, so look for brands that offer vegan versions or simply make a marshmallow fluff using aquafaba!
Is this fudge safe for pets?
Very! This recipe contains ingredients that can be harmful to pets, particularly chocolate which can be toxic to dogs and cats. Always keep your delicious fudge away from your furry friends, and consider making a pet-friendly treat just for them instead!

Indulgent Marshmallow Swirl Fudge to Satisfy Your Sweet Cravings
Ingredients
Equipment
Method
- Line an 8×8 or 9×9 inch baking pan with parchment paper and grease it lightly.
- In a medium saucepan over low heat, combine chocolate chips, sweetened condensed milk, and butter. Stir constantly for 5-7 minutes until smooth and glossy.
- Remove from heat and stir in pure vanilla extract and salt (if using). Ensure everything is combined thoroughly.
- Pour the chocolate mixture into the prepared baking pan and spread it evenly.
- Dollop marshmallow crème over the fudge base and space out the dollops.
- Gently swirl the marshmallow crème into the chocolate with a toothpick or knife.
- Chill the fudge in the refrigerator for at least 2 hours.
- Lift the fudge out using the parchment paper, slice into squares, and serve.
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