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Marshmallow Peanut Butter Fudge

This easy Marshmallow Peanut Butter Fudge recipe is rich, creamy, and packed with fluffy marshmallow and peanut butter flavor in every bite. Made with just a handful of ingredients and no baking required, it's the perfect quick dessert for holiday candy trays, potlucks, gift giving, or satisfying a sweet tooth any time of year.

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This easy Marshmallow Peanut Butter Fudge recipe is rich, creamy, and packed with fluffy marshmallow and peanut butter flavor in every bite. Made with just a handful of ingredients and no baking required, it’s the perfect quick dessert for holiday candy trays, potlucks, gift giving, or satisfying a sweet tooth any time of year.

Ingredients

2 cups peanut butter chips
1 (14 oz.) can sweetened condensed milk
2 Tbsp. butter (optional, for a creamier texture)
1 cup marshmallow fluff
1 tsp. vanilla

Instructions

  1. Line an 8×8-inch baking pan with parchment paper or lightly grease the pan.
  2. Place the peanut butter chips, sweetened condensed milk, and butter (if using) in a large microwave-safe bowl.
  3. Microwave in 30-second intervals, stirring well after each interval, until the mixture is melted and smooth.
  4. Stir in the marshmallow fluff and vanilla until fully combined.
  5. Pour the mixture into the prepared pan and spread evenly.
  6. Refrigerate for 1-2 hours, or until firm.
  7. Lift the fudge from the pan using the parchment paper and cut into squares before serving.

Notes

  • The butter is optional but helps create an extra smooth, creamy texture.
  • For a stronger peanut butter flavor, stir in 2 tablespoons creamy peanut butter along with the marshmallow fluff.
  • Store in an airtight container in the refrigerator for up to 1 week.
  • Freeze for up to 3 months and thaw in the refrigerator before serving.

Tips For Success

  • Stir thoroughly after each microwave interval to prevent the peanut butter chips from overheating.
  • Use parchment paper for easy removal and cleaner slices.
  • Chill completely before cutting for the neatest fudge squares.
  • Lightly spray your spoon with cooking spray before measuring the marshmallow fluff to make it easier to remove.

This soft, creamy fudge has the perfect combination of sweet marshmallow and rich peanut butter flavor, making it a favorite for Christmas candy trays and holiday gift boxes.