Easy Marshmallow Chocolate Fudge

Featured in: Snack Time Heroes

This creamy chocolate confection blends semi-sweet chips, sweetened condensed milk, and butter, melted smoothly in the microwave. Mini marshmallows and optional nuts are gently folded in before chilling for firmness. Perfectly portioned into squares, this treat offers a balance of sweet, smooth, and chewy textures, ideal for holiday indulgence or quick dessert fixes. Variations include swapping chocolate types or adding peanut butter swirls for extra depth.

Updated on Thu, 20 Nov 2025 13:58:00 GMT
Creamy, decadent Easy Marshmallow Fudge, swirled with mini marshmallows, ready from the microwave in minutes. Save
Creamy, decadent Easy Marshmallow Fudge, swirled with mini marshmallows, ready from the microwave in minutes. | williesnack.com

A rich, creamy chocolate fudge loaded with mini marshmallows, ready in just minutes using the microwave. Perfect for holiday treats or last-minute desserts.

The first time I made this marshmallow fudge, it was for a last-minute holiday party. Everyone was amazed that such creamy, decadent fudge could come together so quickly!

Ingredients

  • Chocolate Base: 3 cups (510 g) semi-sweet chocolate chips, 1 can (14 oz / 400 g) sweetened condensed milk, 1/4 cup (55 g) unsalted butter (cut into pieces), 1 tsp vanilla extract
  • Marshmallows: 2 cups (100 g) mini marshmallows
  • Optional Add-ins: 1/2 cup (65 g) chopped walnuts or pecans (optional), pinch of sea salt (optional for topping)

Instructions

Prep Pan:
Line an 8x8-inch (20x20 cm) baking pan with parchment paper, leaving an overhang for easy removal
Melt Ingredients:
In a large microwave-safe bowl, combine the chocolate chips, sweetened condensed milk, and butter
Microwave:
Microwave on high in 30-second intervals, stirring well after each, until the mixture is melted and smooth (about 1.5 to 2 minutes total)
Add Flavor:
Stir in the vanilla extract until fully combined
Mix Marshmallows:
Gently fold in the mini marshmallows and optional nuts, if using
Spread & Top:
Quickly spread the mixture evenly into the prepared pan. Sprinkle with sea salt if desired
Chill:
Chill in the refrigerator for at least 1 hour, or until firm
Serve:
Lift out the fudge using the parchment overhang and cut into squares to serve
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| williesnack.com

Making fudge with my family is always special because everyone helps sprinkle in marshmallows, and it turns into a delicious, shared treat.

Required Tools

You'll need an 8x8-inch (20x20 cm) baking pan, a microwave-safe mixing bowl, a spatula, parchment paper, and a knife for cutting the fudge.

Allergen Information

This recipe contains dairy and soy. Nuts are optional but be sure to check all chocolate and marshmallow ingredient labels for possible allergens.

Nutritional Information

Each serving (1 square, based on 24 squares without nuts) contains about 140 calories, 6 g fat, 21 g carbohydrates, and 2 g protein.

A close-up of Easy Marshmallow Fudge—smooth chocolate base studded with fluffy white marshmallows, perfect for a treat. Save
A close-up of Easy Marshmallow Fudge—smooth chocolate base studded with fluffy white marshmallows, perfect for a treat. | williesnack.com

Cut the fudge into even squares for perfect servings. Store leftover pieces in the fridge for best texture.

Recipe Questions & Answers

How do I prevent the mixture from burning in the microwave?

Heat in short 30-second bursts, stirring thoroughly after each interval to ensure even melting without scorching.

Can I use different types of chocolate?

Yes, milk or dark chocolate chips can replace semi-sweet for varied sweetness and flavor profiles.

What is the purpose of chilling the fudge?

Chilling helps the mixture to set firmly, making it easier to cut into clean squares with the right texture.

Are nuts necessary for this confection?

Nuts are optional and add crunch; omit them if you prefer a smoother texture or have allergies.

How should I store the finished product?

Keep the squares in an airtight container in the refrigerator; they stay fresh for up to one week.

Easy Marshmallow Chocolate Fudge

Creamy chocolate combined with mini marshmallows creates a sweet, melt-in-your-mouth treat.

Prep time
5 min
Time to cook
5 min
Total duration
10 min
Created by Willie Cooper


Skill level Easy

Cuisine American

Total yield 24 Number of servings

Dietary notes Vegetarian-friendly, No gluten

What You'll Need

Chocolate Base

01 3 cups semi-sweet chocolate chips
02 1 can (14 oz) sweetened condensed milk
03 1/4 cup unsalted butter, cut into pieces
04 1 teaspoon vanilla extract

Marshmallows

01 2 cups mini marshmallows

Optional Add-ins

01 1/2 cup chopped walnuts or pecans (optional)
02 Pinch of sea salt (optional, for topping)

How to make it

Step 01

Prepare Baking Pan: Line an 8x8-inch baking pan with parchment paper, leaving an overhang for easy removal.

Step 02

Combine Ingredients: In a large microwave-safe bowl, combine chocolate chips, sweetened condensed milk, and butter.

Step 03

Melt Mixture: Microwave on high in 30-second intervals, stirring well after each, until melted and smooth, approximately 1.5 to 2 minutes total.

Step 04

Add Vanilla: Stir in the vanilla extract until fully incorporated.

Step 05

Fold in Marshmallows and Nuts: Gently fold in mini marshmallows and optional nuts if using.

Step 06

Spread and Top: Quickly spread the mixture evenly into the prepared pan and sprinkle with sea salt, if desired.

Step 07

Chill: Refrigerate for at least 1 hour or until firm.

Step 08

Serve: Lift the fudge using the parchment paper overhang and cut into 24 squares to serve.

Tools you'll need

  • 8x8-inch baking pan
  • Microwave-safe mixing bowl
  • Spatula
  • Parchment paper
  • Knife

Allergy details

Review ingredients for potential allergens and ask a medical expert if unsure.
  • Contains dairy, soy, and may contain nuts if added.
  • Check ingredient labels for potential allergens.

Nutrition Details (per serving)

This nutritional info is for reference only. For health questions, check with a medical professional.
  • Energy: 140
  • Fats: 6 g
  • Carbohydrates: 21 g
  • Proteins: 2 g