If you are craving a sweet treat that is both rich and delightfully soft, the Decadent Marshmallow Swirl Fudge Recipe is exactly what you need to satisfy your dessert desires. This fudge is an irresistible combination of smooth chocolate and fluffy marshmallow swirls, creating a heavenly bite every time. With just a handful of simple ingredients and a quick preparation, you can whip up this exceptional fudge that’s perfect for sharing with friends or keeping all to yourself for those moments when only something genuinely indulgent will do.

Ingredients You’ll Need
What’s great about the Decadent Marshmallow Swirl Fudge Recipe is how straightforward the ingredient list is, yet how each component plays a crucial role in building layers of flavor and texture. These ingredients come together effortlessly, creating that perfect balance of creamy, sweet, and slightly salty that will have you hooked from the first bite.
- 2 cups Semi-Sweet Chocolate Chips: Using high-quality chocolate chips ensures a deep, rich cocoa flavor that’s essential for true fudge magic.
- 1 can Sweetened Condensed Milk: This adds luscious creaminess and sweetness; choose coconut condensed milk if you want a dairy-free twist.
- 1/2 cup Unsalted Butter: Melted butter helps create a smooth texture and enhances the overall richness of the fudge.
- 1 teaspoon Vanilla Extract: Pure vanilla extract adds warmth and depth to the chocolate mixture’s flavor.
- 1 pinch Salt: A tiny pinch balances the sweetness and intensifies the chocolate notes so the fudge never feels cloying.
- 1 cup Marshmallow Fluff (or Marshmallow Cream): This is the star ingredient for the marshmallow swirl, lending soft, pillowy texture and adorable visual contrast.
How to Make Decadent Marshmallow Swirl Fudge Recipe
Step 1: Prepare Your Pan and Gather Ingredients
Start by lining an 8×8-inch pan with parchment paper or lightly greasing it for easy fudge removal later. Having all your ingredients measured and ready is key because fudge sets quickly once heated.
Step 2: Melt Chocolate and Butter
In a medium saucepan over low heat, melt the semi-sweet chocolate chips and unsalted butter together. Stir gently and consistently so the mixture melts into a glossy, lump-free base for your fudge. This smooth chocolate foundation is what makes the Decadent Marshmallow Swirl Fudge Recipe so utterly dreamy.
Step 3: Add Condensed Milk, Vanilla, and Salt
Once melted, remove the pan from heat and stir in the sweetened condensed milk, vanilla extract, and a pinch of salt. This step beautifully ties the ingredients into a luxuriously smooth fudge batter ready to be swirled with fluff.
Step 4: Pour Chocolate Mixture into Pan
Pour half of your rich chocolate mixture into the prepared pan and smooth it out evenly. This will be the base layer inviting the marshmallow center to shine.
Step 5: Add Marshmallow Fluff and Swirl
Gently spoon the marshmallow fluff over the chocolate layer in dollops, then pour the remaining chocolate mixture on top. Using a knife or skewer, swirl the layers together visually creating that irresistible marshmallow pattern that defines this fudge recipe.
Step 6: Chill Until Set
Place the pan in the refrigerator for at least 2 hours so the fudge firms up. Once set, remove it from the pan using the parchment, and cut into 16 squares. You’ll be amazed at how perfect each piece looks and tastes.
How to Serve Decadent Marshmallow Swirl Fudge Recipe
Garnishes
Elevate your fudge presentation by sprinkling a few mini marshmallows, cocoa nibs, or a light dusting of powdered sugar on top. These simple garnishes add visual appeal and extra texture that make each bite exciting.
Side Dishes
Pair this fudge with a warm cup of coffee, silky hot chocolate, or even a scoop of vanilla ice cream to create a dessert experience that’s both comforting and indulgent. The creamy fudge works beautifully alongside mellow drinks and lighter sweets.
Creative Ways to Present
Try serving your Decadent Marshmallow Swirl Fudge Recipe on a beautiful dessert platter lined with fresh mint leaves or edible flowers for festive occasions. Wrapping individual pieces in wax paper tied with twine also makes adorable homemade gifts that friends and family will rave about.
Make Ahead and Storage
Storing Leftovers
Store any leftover fudge in an airtight container at room temperature for up to one week. Keep it away from heat or direct sunlight to maintain its silky consistency and prevent melting.
Freezing
Want to keep your fudge longer? Wrap individual squares tightly in plastic wrap and store them in a freezer-safe container or bag. When properly frozen, fudge stays fresh for up to 3 months without losing any of its decadent flavor.
Reheating
If the fudge becomes too firm in the fridge or freezer, simply bring it to room temperature before enjoying to let those marshmallow swirls soften and the chocolate return to its perfect melt-in-your-mouth texture.
FAQs
Can I use milk chocolate instead of semi-sweet?
Absolutely! Milk chocolate will make the fudge sweeter and creamier, but if you prefer a richer, less sweet treat, semi-sweet is the best choice for this Decadent Marshmallow Swirl Fudge Recipe.
Is it possible to make this fudge dairy-free?
Yes. Use coconut-based condensed milk and a dairy-free butter substitute to keep the fudge delicious while catering to dairy restrictions without compromising on texture.
How do I store this fudge if I live in a warm climate?
In warmer temperatures, it’s best to keep the fudge refrigerated to prevent melting. Just remember to bring it back to room temperature before serving for optimal softness.
Can I add nuts or other mix-ins?
Definitely! Chopped nuts like pecans or walnuts add wonderful crunch and flavor contrast. Just fold them into the chocolate mixture before swirling in the marshmallow fluff.
How long does this fudge take to set properly?
Allow at least 2 hours in the refrigerator for the fudge to fully firm up. For a firmer texture, chilling overnight is ideal before cutting and serving.
Final Thoughts
You simply must try the Decadent Marshmallow Swirl Fudge Recipe as soon as possible — it’s one of those desserts that feels like a warm hug in every bite. The combination of silky chocolate and fluffy marshmallow swirls is an absolute crowd-pleaser, easy to make but incredibly impressive. Whether you’re making it for a special occasion or just because you deserve a treat, this fudge will become your new favorite go-to recipe.
Print
Decadent Marshmallow Swirl Fudge Recipe
- Prep Time: 15 minutes
- Cook Time: 5 minutes
- Total Time: 20 minutes
- Yield: 16 squares
- Category: Dessert
- Method: No-Cook
- Cuisine: American
Description
This Decadent Marshmallow Swirl Fudge is a rich and creamy treat combining smooth semi-sweet chocolate with a luscious marshmallow swirl. Perfect for chocolate lovers looking for an easy no-bake recipe that delivers intense flavor and a melt-in-your-mouth texture. Ready in just 20 minutes, this fudge is ideal for gifting or satisfying your sweet tooth at home.
Ingredients
Main Ingredients
- 2 cups Semi-Sweet Chocolate Chips (Use high-quality for best flavor.)
- 1 can Sweetened Condensed Milk (For a dairy-free option, use coconut condensed milk.)
- 1/2 cup Unsalted Butter (Melt for even mixing.)
- 1 teaspoon Vanilla Extract (Use pure vanilla for the best results.)
- 1 pinch Salt (Balances the sweetness.)
- 1 cup Marshmallow Fluff (or Marshmallow Cream) (Creates a creamy texture.)
Instructions
- Prepare Ingredients: Gather all ingredients and measure them accurately. Melt the unsalted butter in a saucepan over low heat to ensure it blends smoothly.
- Melt Chocolate Mixture: In the same saucepan, add the semi-sweet chocolate chips and sweetened condensed milk to the melted butter. Stir continuously over low heat until the chocolate is completely melted and the mixture is uniformly smooth, about 5 minutes.
- Add Flavor: Remove the saucepan from heat. Stir in the vanilla extract and a pinch of salt to balance and enhance the sweetness of the fudge.
- Prepare Pan: Line an 8×8 inch square pan with parchment paper or lightly grease it to ensure easy removal of the fudge once set.
- Pour Base Layer: Pour half of the chocolate fudge mixture evenly into the prepared pan.
- Swirl Marshmallow: Spoon dollops of the marshmallow fluff over the fudge base. Then pour the remaining chocolate mixture on top. Using a knife or skewer, gently swirl the marshmallow cream into the chocolate to create a marbled effect without fully blending it.
- Chill to Set: Refrigerate the fudge for at least 2-3 hours or until fully set and firm.
- Serve: Remove the fudge from the pan using the parchment paper edges. Cut into 16 squares and serve chilled for the best texture and flavor.
Notes
- For a dairy-free version, substitute the sweetened condensed milk with coconut condensed milk and ensure marshmallow fluff is vegan-friendly.
- Use high-quality chocolate chips for a richer taste and smoother consistency.
- If you prefer a less sweet fudge, reduce the amount of marshmallow fluff or drizzle it on top instead of swirling.
- Store fudge in an airtight container in the refrigerator for up to 2 weeks.
- Allow fudge to come to room temperature for a few minutes before serving if it becomes too hard after refrigeration.

