“Can we really make fudge without baking?” I overheard a friend exclaim during a recent gathering. It got me thinking—wouldn’t it be fantastic to create a delicious dessert that avoids the oven while still packing a flavor punch? Enter my Marshmallow Swirl Fudge, a rich and creamy delight that requires no candy thermometer or complicated techniques! Just a few simple ingredients come together in a snap, making it the perfect solution for satisfying your sweet tooth or impressing guests at any gathering. Plus, this easy recipe can be customized to fit various dietary needs, including dairy-free options. Are you ready to dive into a world of gooey marshmallow bliss? Let’s swirl it up!

Why is Marshmallow Swirl Fudge a Must-Try?
Indulgence without effort: This fudge is the ultimate treat for anyone craving something sweet, requiring no baking and minimal fuss.
Rich chocolate creaminess: The combination of semi-sweet chocolate and marshmallow fluff creates a decadent dessert that melts in your mouth.
Versatile variations: Customize it easily! Swap in dairy-free alternatives for a guilt-free indulgence or add crushed cookies for a delightful crunch.
Impressive crowd-pleaser: Perfect for gatherings, this fudge is sure to impress your guests without the hassle of traditional baking.
Fast and fun: Ready in just a couple of hours, it fits perfectly into your busy schedule, making dessert a breeze.
For more delightful recipes, check out my Chocolate Marshmallow Swirl Cookies to elevate your dessert game!
Marshmallow Swirl Fudge Ingredients
• Enjoy this effortless dessert with just a handful of ingredients that work in perfect harmony!
For the Fudge
- Semi-Sweet Chocolate Chips – They provide the primary chocolate flavor and structure; opt for dark chocolate to deepen the taste.
- Sweetened Condensed Milk – Gives a rich sweetness and creamy texture; coconut condensed milk works beautifully for a dairy-free treat.
- Unsalted Butter – Adds luxurious richness; consider a non-dairy butter if you’re making it dairy-free.
- Vanilla Extract – Enhances the overall flavor; pure vanilla offers a more robust profile.
- Salt – Balances the sweetness; feel free to skip it if you’re using salted butter.
For the Swirl
- Marshmallow Fluff – Creates those delicious creamy swirls within the fudge; mini marshmallows can be used but will melt into the fudge, reducing the swirl effect.
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, 14 ounces of sweetened condensed milk, and 4 tablespoons of unsalted butter. Over low heat, stir the mixture continuously for about 5–7 minutes, until the chocolate is fully melted and the mixture is smooth and glossy. Be careful not to let it boil; this ensures a creamy texture for your Marshmallow Swirl Fudge.
Step 2: Add Flavor Enhancers
Remove the saucepan from heat and mix in 1 teaspoon of vanilla extract and a pinch of salt. Stir vigorously for an additional minute until the ingredients are thoroughly combined. The warmth of the fudge will enhance the flavors, making it more aromatic. This step is essential for bringing depth to your sweet dish.
Step 3: Prepare the Baking Dish
While your fudge mixture cools slightly, line an 8×8-inch baking dish with parchment paper, leaving some overhang on the edges for easy removal later. This preparation will help ensure that your Marshmallow Swirl Fudge releases cleanly and maintains its perfect square shape once set. The parchment paper also makes cleanup a breeze!
Step 4: Spread the Fudge Mixture
Pour the melted chocolate mixture into the prepared baking dish, spreading it evenly with a spatula. Aim for a smooth, flat surface as you press the fudge gently into the corners of the dish. Allow the fudge to cool at room temperature for about 10 minutes; this will firm it slightly, making the next steps easier.
Step 5: Swirl in the Marshmallow Fluff
Drop spoonfuls of 1 cup of marshmallow fluff over the chocolate layer. Using a knife or a skewer, gently swirl the marshmallow fluff into the fudge to create beautiful ribbons. Take care not to overmix; you want those luscious marshmallow swirls to stand out and not completely blend into the chocolate base.
Step 6: Chill the Fudge
Once you’ve achieved an appealing swirl, cover the baking dish with plastic wrap and refrigerate for at least 2 hours. This chilling time allows the Marshmallow Swirl Fudge to set properly and become firmer for easier cutting. You’ll know it’s ready when it feels solid to the touch and holds its shape.
Step 7: Cut and Serve
After chilling, lift the fudge out of the baking dish using the parchment paper. Place it on a cutting board and slice it into small squares for easy serving. Each piece should reveal the beautiful marshmallow swirls. The fudge can be enjoyed right away or stored in an airtight container for up to a week, allowing you to savor each creamy bite!

Marshmallow Swirl Fudge Variations & Substitutions
Feel free to get creative and make this fudge truly your own with these delightful twists!
- Dairy-Free: Use coconut condensed milk and a non-dairy butter substitute to enjoy a rich taste without dairy.
- Extra Chocolatey: Fold in ½ cup of chopped dark chocolate for a decadent twist before swirling in the marshmallow fluff. You can never go wrong with more chocolate!
- Crunchy Version: Add crushed cookies or chopped nuts for a delightful textural contrast. Chewy and crunchy play so well together, creating a truly enjoyable bite.
- S’mores Fudge: Create a graham cracker crust underneath the fudge layer for a nostalgic s’mores experience. Combine the flavors of chocolate, marshmallow, and Graham crackers for a winning treat!
- Nutty Delight: Stir in ½ cup of toasted nuts, like pecans or walnuts, to introduce an earthy richness and crunch. Nuts add a welcome surprise in each delicious bite!
- Spicy Kick: Add a pinch of cayenne pepper or chili powder to your fudge mixture for a unique spicy twist that plays nicely with the sweetness. It’s an unexpected pairing that might just become your new favorite!
- Flavor Infusion: Swap the vanilla extract for almond or peppermint extract to give your fudge a completely new profile. Each extract brings a distinct flavor note that can elevate your fudge experience.
For more desserts to tantalize your taste buds, don’t forget to explore my delightful Chocolate Marshmallow Swirl Cookies for another sweet surprise!
Expert Tips for Marshmallow Swirl Fudge
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Smooth Melting: Ensure the chocolate chips, sweetened condensed milk, and butter melt together smoothly over low heat. Stir consistently to avoid burning and achieve that creamy texture.
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Avoid Overmixing: When you’re swirling in the marshmallow fluff, be gentle! Overmixing will cause the fluff to blend too much into the fudge, losing those gorgeous ribbons you want to showcase.
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Perfect Cooling: Allow adequate chilling time in the refrigerator. If you cut into the fudge too early, it may crumble instead of slicing cleanly into nice squares.
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Customization Is Key: Feel free to add your twist! To elevate your Marshmallow Swirl Fudge, try adding crushed nuts or cookies for added texture, creating variations everyone will love.
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Storage Solution: Store your fudge in an airtight container in the fridge for up to a week. If it lasts that long, you’ll have a delicious quick treat on hand whenever the cravings hit!
How to Store and Freeze Marshmallow Swirl Fudge
- Room Temperature: Keep the fudge at room temperature for up to 2 days in a cool, dry place; however, the texture is best when stored in the fridge.
- Fridge: Store the Marshmallow Swirl Fudge in an airtight container in the refrigerator for up to a week, ensuring it remains fresh and flavorful.
- Freezer: For longer storage, freeze the fudge wrapped tightly in plastic wrap and placed in an airtight container for up to 3 months.
- Reheating: When ready to enjoy, thaw the frozen fudge in the fridge overnight; no additional reheating is necessary, as it’s delightful served chilled!
What to Serve with No-Bake Marshmallow Swirl Fudge
Indulging in creamy, chocolatey fudge creates a perfect moment of bliss, and pairing it with delightful companions elevates the experience even further.
- Whipped Cream: A dollop of light, fluffy whipped cream adds a luscious contrast and enhances the overall sweetness of the fudge.
- Fresh Berries: Serve with a handful of raspberries or strawberries for a refreshing burst of flavor that beautifully complements the rich fudge.
- Coffee: A warm cup of freshly brewed coffee balances the sweetness and provides a comforting touch to your dessert experience.
- Ice Cream: Add a scoop of vanilla or chocolate ice cream on the side for a decadent treat that enhances the fudge’s creaminess.
- Chocolate Drizzle: Drizzle melted chocolate over the fudge for an extra touch of indulgence—double the chocolate delight!
- S’mores Elements: Incorporate crushed graham crackers on top for a s’mores twist, invoking memories of campfire bliss in each bite.
- Milkshake: Treat yourself to a chocolate milkshake alongside; the creamy textures and rich flavors will make your taste buds dance.
- Nutty Toppings: Sprinkle chopped nuts, like pecans or walnuts, for a crunchy texture contrast and added richness to every mouthful.
- Caramel Sauce: Offer a side of warm caramel sauce for dipping, enhancing the fudge with gooey sweetness for an unforgettable pairing!
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 24 hours in advance by melting the chocolate mixture and pouring it into your lined baking dish. Simply let it cool at room temperature, cover it with plastic wrap, and refrigerate. For the marshmallow swirl, you can have the fluff ready to go in a separate container. When you’re ready to serve, just swirl the fluff into the chilled fudge, chill for another 2 hours (or until set), and cut into squares. This way, you can enjoy delicious, creamy fudge without the last-minute stress!

Marshmallow Swirl Fudge Recipe FAQs
How do I choose the best chocolate chips for my fudge?
Absolutely! For the richest flavor, I recommend using semi-sweet chocolate chips. They provide the perfect balance of sweetness and chocolate depth. If you’re looking for a more intense flavor, dark chocolate chips are a fantastic option. Just keep in mind that they will make your fudge slightly less sweet.
What is the best way to store my Marshmallow Swirl Fudge?
To keep your fudge fresh, store it in an airtight container in the refrigerator for up to a week. If you prefer a room-temperature option, it can last up to 2 days in a cool, dry place, although refrigeration maintains its lovely texture. For longer storage, you can freeze it!
Can I freeze the Marshmallow Swirl Fudge?
Yes, you can! To freeze your fudge, wrap it tightly in plastic wrap and place it in an airtight container or a freezer bag. It will stay fresh for up to 3 months. When you’re ready to enjoy it, simply thaw the fudge in the fridge overnight. This way, you’ll have convenient, delicious treats waiting for you!
What should I do if my fudge doesn’t set properly?
If your fudge doesn’t set as expected, it could be due to insufficient chilling time. Ensure you leave it in the refrigerator for at least 2 hours. Additionally, if it’s still too soft after chilling, it may need more chocolate or less moisture in your mixture next time, so consider adjusting the ratio of your ingredients.
Can I modify this recipe for dietary restrictions?
Very! You can easily make a dairy-free version by opting for coconut condensed milk and a suitable non-dairy butter substitute. For nut allergies, ensure that any additions, like crushed cookies or nuts, are allergy-friendly. If you’re looking to reduce sugar, consider finding sugar-free chocolate chips to maintain a lower sugar content while enjoying this delicious treat!
How do I make sure my marshmallow swirls stay intact?
To keep those delightful ribbons of marshmallow fluff distinct, be gentle with your mixing when you swirl it into the fudge. Overmixing will lead to a less visually appealing fudge. As you’re assembling, drop spoonfuls of marshmallow fluff atop the fudge and carefully swirl with a knife or spatula without fully incorporating it. This will create those beautiful swirls you crave!

Creamy Marshmallow Swirl Fudge for Effortless Indulgence
Ingredients
Equipment
Method
- In a medium saucepan, combine chocolate chips, sweetened condensed milk, and butter over low heat. Stir continuously for about 5-7 minutes until melted and smooth.
- Remove from heat, mix in vanilla extract and a pinch of salt, and stir for an additional minute until combined.
- Line an 8x8-inch baking dish with parchment paper, leaving overhang for easy removal.
- Pour the melted chocolate mixture into the prepared baking dish and spread evenly. Let it cool at room temperature for about 10 minutes.
- Drop spoonfuls of marshmallow fluff over the chocolate layer and swirl gently with a knife to create ribbons.
- Cover with plastic wrap and refrigerate for at least 2 hours until set.
- Lift out the fudge using the parchment paper, slice into squares, and serve.

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