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Marshmallow Swirl Chocolate Fudge Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 15 reviews
  • Author: Amanda
  • Prep Time: 10 minutes
  • Cook Time: 10 minutes
  • Total Time: 2 hours 20 minutes
  • Yield: 16 servings
  • Category: Dessert
  • Method: Stovetop
  • Cuisine: American

Description

Marshmallow Swirl Fudge is a rich and creamy treat featuring a smooth blend of semi-sweet chocolate, sweetened condensed milk, and swirls of mini marshmallows. This easy no-bake fudge sets firm in the fridge, delivering a perfect balance of sweetness and texture with each bite.


Ingredients

Scale

Fudge Base

  • 3 cups semi-sweet chocolate chips
  • 1 (14 oz) can sweetened condensed milk
  • 2 tbsp unsalted butter
  • 1/8 tsp salt
  • 1 tsp vanilla extract

Marshmallow Swirl

  • 1 1/4 cups mini marshmallows


Instructions

  1. Prep Your Pan: Line an 8×8-inch square baking pan with parchment paper, leaving a slight overhang on the sides for easy removal of the fudge once set.
  2. Melt Chocolate, Milk, Butter, and Salt: In a medium saucepan over low heat, combine the chocolate chips, sweetened condensed milk, unsalted butter, and salt. Stir constantly to melt everything smoothly without overheating or burning.
  3. Add Vanilla: Remove the pan from heat and stir in the vanilla extract until fully combined and smooth.
  4. Fold in Marshmallows: Quickly add the mini marshmallows and fold them in gently with a spatula just enough to create lovely swirls without melting them completely.
  5. Transfer to Pan and Swirl: Pour the mixture into the prepared baking pan. Use a spatula to gently swirl the top so some marshmallows peek through the surface decoratively.
  6. Chill and Set: Let the fudge cool at room temperature for about 10 minutes, then refrigerate for at least 2 hours until fully set and firm to touch.
  7. Slice and Serve: Once set, lift the fudge out of the pan using the parchment paper overhang. Using a buttered knife, slice it into 16 evenly sized squares and serve.

Notes

  • Don’t overheat the chocolate or it’ll seize; stir constantly on low heat for smooth melting.
  • Add marshmallows last so they retain their shape and create beautiful swirls inside the fudge.
  • Use parchment paper in the pan for easy lifting and cleaner slicing.
  • A buttered knife helps to make neater cuts through the fudge.
  • Store fudge in an airtight container to prevent drying out.
  • You can swap semi-sweet chocolate chips with dark or milk chocolate for variation.
  • Use marshmallow fluff as a substitute if mini marshmallows are unavailable.
  • For extra texture, add crushed peppermint or chopped nuts.
  • Vegan versions can be made using vegan condensed milk and chocolate.
  • Fudge can be made up to 5 days in advance and refrigerated or frozen for up to 3 months.

Nutrition

  • Serving Size: 1 square
  • Calories: 165 kcal
  • Sugar: 21 g
  • Sodium: 45 mg
  • Fat: 7 g
  • Saturated Fat: 4 g
  • Unsaturated Fat: 3 g
  • Trans Fat: 0 g
  • Carbohydrates: 25 g
  • Fiber: 1 g
  • Protein: 1 g
  • Cholesterol: 10 mg