Print

Swirl Fudge Recipe

4.5 from 138 reviews

This rich and creamy Swirl Fudge combines smooth semi-sweet chocolate with luscious marshmallow fluff swirled throughout for an irresistible treat. The fudge is easy to make on the stovetop, setting to perfect squares after chilling for a sweet and satisfying dessert with a fun, fluffy twist.

Ingredients

Scale

Fudge Base

  • 3 cups semi-sweet chocolate chips
  • 1 can (14 oz) sweetened condensed milk
  • 2 tbsp unsalted butter, melted
  • 1 tsp vanilla extract
  • ¼ tsp salt

Swirl

  • 1 cup marshmallow fluff (or marshmallow cream)

Instructions

  1. Melt the chocolate: In a medium saucepan over low heat, combine the semi-sweet chocolate chips, sweetened condensed milk, and melted butter. Stir constantly until the mixture is smooth and fully melted.
  2. Add vanilla and salt: Remove the saucepan from heat. Stir in the vanilla extract and salt until well combined, ensuring a flavorful base for the fudge.
  3. Pour into the pan: Line an 8×8-inch baking dish with parchment paper. Pour the chocolate mixture evenly into the dish, smoothing the top with a spatula.
  4. Add the marshmallow swirl: Drop spoonfuls of marshmallow fluff over the fudge. Using a knife, gently drag through the mixture to create thick, creamy swirls without overmixing.
  5. Chill and set: Place the baking dish in the refrigerator and chill for at least 2 hours, or until the fudge is fully firm and set.
  6. Cut and serve: Lift the fudge out of the pan using the parchment paper. Cut into clean squares with a knife, then serve and enjoy!

Notes

  • Use marshmallow fluff instead of mini marshmallows for smooth swirls that don’t melt into the fudge.
  • Don’t overmix the marshmallow swirl; drag the knife gently to keep ribbons thick and visible.
  • Let the fudge chill completely for clean cuts and perfect texture.
  • Sprinkle crushed graham crackers on top for a tasty s’mores variation.
  • For toasted marshmallows, lightly torch the top after swirling for a caramelized finish.
  • Dairy-free option: use dairy-free chocolate and coconut condensed milk.
  • Extra chocolatey: stir in ½ cup chopped dark chocolate before swirling.
  • Add crunch with crushed cookies or chopped nuts.
  • Try a graham cracker crust before pouring fudge for an enhanced s’mores taste.
  • Store leftover fudge in airtight container in the refrigerator up to one week or freeze for up to 3 months.

Keywords: Swirl fudge, marshmallow fudge, easy fudge recipe, chocolate fudge, dessert squares, no bake fudge, stovetop fudge