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Gooey Marshmallow Fluff Brownies: Easy Recipe

Marshmallow Fluff Brownies

Sara Coleman
These fudgy brownies feature a decadent swirl of marshmallow fluff, creating a gooey, sweet layer that perfectly complements the rich chocolate base. They're an irresistible treat for any occasion, offering a nostalgic twist on a classic dessert.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 9 servings
Calories 480 kcal

Ingredients
  

Ingredients

  • 1 cup unsalted butter melted and slightly cooled
  • 2 cups granulated sugar
  • 4 large eggs at room temperature
  • 2 tsp vanilla extract
  • 1 cup all-purpose flour spooned and leveled
  • 0.75 cup unsweetened cocoa powder
  • 0.5 tsp salt
  • 1 cup semi-sweet chocolate chips divided
  • 1 jar marshmallow fluff about 7 oz, for swirling

Notes

Store leftover brownies in an airtight container at room temperature for up to 3 days. For make-ahead, bake and cool completely, then wrap tightly and freeze for up to 1 month; thaw at room temperature before serving. For a nutty variation, add ½ cup chopped walnuts or pecans to the batter. Serve slightly warmed with a scoop of vanilla ice cream for an extra indulgent dessert.