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No Bake Butterscotch Marshmallow Bars

Stack of no bake butterscotch marshmallow bars with colorful mini marshmallows on a marble board.

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No Bake Butterscotch Marshmallow Bars are a nostalgic, easy-to-make dessert combining creamy peanut butter, sweet butterscotch chips, and colorful marshmallows. Perfect for parties, potlucks, or freezer-friendly treats.

Ingredients

Scale
  • 1 package butterscotch chips (300g)
  • 1 cup creamy or crunchy peanut butter
  • 1/2 cup unsalted butter
  • 1 package rainbow miniature marshmallows (250g)
  • 1 tsp vanilla extract
  • Optional: 1/2 cup shredded coconut
  • Optional: 1 cup Rice Krispies
  • Optional: 1/2 cup mini chocolate chips
  • Optional: 1/2 cup chopped walnuts or peanuts

Instructions

  1. Place the bag of marshmallows in the freezer for 10–15 minutes. Line an 8×8 or 9×9 inch pan with parchment paper.
  2. In a medium saucepan over low heat, melt the butterscotch chips, peanut butter, and butter. Stir until smooth and remove from heat.
  3. Let the mixture cool for 3–5 minutes.
  4. Quickly fold in the vanilla extract and frozen marshmallows. Stir gently to combine without melting the marshmallows.
  5. Pour the mixture into the lined pan and spread evenly with a spatula.
  6. Refrigerate for at least 1 hour or until firm.
  7. Once set, remove from pan and cut into squares. Store in the fridge or freezer.

Notes

  • Freeze marshmallows before mixing to prevent melting.
  • Let the melted mixture cool slightly before adding marshmallows.
  • Store in an airtight container in the fridge for up to 7 days.
  • These bars are even better served straight from the freezer.
  • Add-ins should total no more than 1.5 cups to maintain consistency.

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