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Marshmallow and Swirl Fudge Recipe

4.7 from 81 reviews

This Marshmallow and Swirl Fudge recipe offers a rich, creamy, and delightfully textured treat featuring smooth semi-sweet chocolate swirled with gooey mini marshmallows. Made with sweetened condensed milk for a soft and chewy consistency, this easy stovetop fudge is perfect for holiday gifting, dessert platters, or any time you crave a sweet indulgence.

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

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 little overhang on the sides to easily lift out the fudge later.
  2. Melt Chocolate, Milk, Butter, and Salt: In a medium saucepan over low heat, combine 3 cups semi-sweet chocolate chips, 1 (14 oz) can sweetened condensed milk, 2 tbsp unsalted butter, and 1/8 tsp salt. Stir constantly until the mixture is fully melted and smooth, taking care not to overheat the chocolate.
  3. Add Vanilla: Remove the pan from heat and stir in 1 tsp vanilla extract until fully combined, enhancing the depth of flavor.
  4. Fold in Marshmallows: Quickly add 1 1/4 cups mini marshmallows and gently fold them in with a spatula, just enough to create swirls without melting the marshmallows completely.
  5. Transfer to Pan and Swirl: Pour the fudge mixture into the prepared pan. Use your spatula to gently swirl the top so some marshmallows peek through for a beautiful marbled effect.
  6. Chill and Set: Let the pan cool at room temperature for about 10 minutes, then transfer it to the refrigerator for at least 2 hours or until the fudge is fully set and firm.
  7. Slice and Serve: Once set, lift the fudge out using the parchment paper overhang and slice into 16 squares with a buttered knife for clean cuts. Enjoy!

Notes

  • Do not overheat chocolate or it may seize; always melt on low heat and stir constantly.
  • Add marshmallows last to maintain swirled texture without fully melting them.
  • Line the pan with parchment paper for easy removal and neat cutting.
  • Use a buttered knife to cut fudge cleanly without sticking.
  • Store fudge in an airtight container in the fridge for up to 7 days or freeze for up to 3 months.
  • For a dairy-free option, substitute with vegan condensed milk and chocolate chips.

Keywords: marshmallow fudge, chocolate fudge, swirl fudge, easy fudge recipe, holiday dessert, creamy fudge, sweetened condensed milk fudge