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Marshmallow Swirl Fudge Recipe

4.4 from 88 reviews

Marshmallow Swirl Fudge is a decadent, easy-to-make treat featuring rich semi-sweet chocolate chips blended with sweetened condensed milk for a soft, chewy texture. Mini marshmallows are folded in last to create beautiful swirls and a fun pop of texture. This no-bake fudge is chilled until set, making it perfect for holidays, gifts, or anytime you want a luscious chocolate and marshmallow dessert.

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 to easily lift the fudge out once set.
  2. Melt Chocolate, Milk, Butter, and Salt: Place the semi-sweet chocolate chips, sweetened condensed milk, unsalted butter, and salt in a medium saucepan over low heat. Stir constantly with a silicone spatula until the mixture is fully melted and smooth, taking care not to overheat to avoid seizing the chocolate.
  3. Add Vanilla: Remove the saucepan from heat and stir in the vanilla extract thoroughly to incorporate its fragrance and flavor.
  4. Fold in Marshmallows: Quickly add the mini marshmallows and gently fold them in with your spatula just enough to achieve swirls without melting them entirely, so they retain their shape and texture in the fudge.
  5. Transfer to Pan and Swirl: Pour the fudge mixture into the prepared baking pan. Use your spatula to gently swirl the top so that some marshmallows peek through for a decorative and tasty effect.
  6. Chill and Set: Let the pan cool at room temperature for about 10 minutes, then transfer it to the refrigerator. Chill for at least 2 hours or until the fudge is fully set and firm to the touch.
  7. Slice and Serve: Once set, lift the fudge out of the pan using the parchment paper overhang. Use a buttered knife to slice the fudge into 16 clean squares, and serve immediately or store properly.

Notes

  • Stir constantly on low heat to prevent chocolate from seizing or burning.
  • Add marshmallows last and fold gently to maintain their shape in the fudge.
  • Line your pan with parchment paper for easy removal and clean cutting.
  • Use a buttered knife to cut fudge for a cleaner slice.
  • Store fudge in an airtight container in the fridge to maintain moisture and freshness.
  • Marshmallow fluff can be used as a substitute for mini marshmallows; use about 1 cup of fluff.
  • Fudge can be made up to 5 days in advance and freezes well for up to 3 months.

Keywords: fudge, marshmallow fudge, chocolate fudge, easy fudge recipe, no bake fudge, holiday dessert, sweetened condensed milk fudge