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Peanut Butter Marshmallow Squares

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Peanut Butter Marshmallow Squares are a quick, no-bake treat combining creamy peanut butter, sweet mini marshmallows, and a smooth butterscotch base. These squares are perfect for any occasion and a hit at gatherings.

Ingredients

2 cups butterscotch chips

1/2 cup smooth peanut butter (not natural)

1/4 cup unsalted butter

1/2 teaspoon pure vanilla extract

4 cups mini rainbow marshmallows

Instructions

  1. Prepare the Pan: Line an 8×8-inch or 9×9-inch square baking pan with parchment paper, allowing extra on the sides to lift the bars out easily once set.
  2. Melt the Base Mixture: In a medium saucepan over low heat, combine the butterscotch chips, peanut butter, and butter. Stir constantly until the mixture is completely melted and smooth. Remove from heat.
  3. Cool Slightly: Allow the mixture to cool for 8 to 10 minutes. It should remain pourable but not be hot to the touch.
  4. Add Vanilla and Marshmallows: Stir in the vanilla extract. Gently fold in the mini rainbow marshmallows using a spatula, being careful not to crush them.
  5. Press into Pan: Transfer the mixture to the prepared pan. Press it evenly into the pan with a spatula or the back of a spoon, spreading it to the corners without compressing the marshmallows too much.
  6. Chill and Set: Refrigerate the pan for 1 to 2 hours until the bars are firm and set all the way through.
  7. Cut and Serve: Lift the set mixture out of the pan using the parchment overhang. Use a sharp knife to cut into 16 squares, cleaning the knife between cuts for neat edges.

Notes

For a chocolate drizzle, melt chocolate and drizzle over the squares for extra sweetness and visual appeal.

Use pastel mini marshmallows for a more colorful and vibrant look.

For added crunch, add chopped peanuts or almonds to the mixture.

Nutrition