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A peanut butter square with a bite taken out of it.

Peanut Butter Marshmallow Squares (Confetti Squares)

Megan Weimer
These no bake peanut butter marshmallow squares are a nostalgic treat made with creamy peanut butter, sweet butterscotch chips, and mini marshmallows. Also known as confetti squares, they’re quick, easy, and perfect for satisfying your sweet tooth!
5 from 2 votes
Prep Time 10 minutes
Chill Time 1 hour
Total Time 1 hour 10 minutes
Course Dessert
Cuisine American
Servings 16 squares
Calories 251 kcal

Equipment

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Ingredients
 
 

Instructions
 

  • Line a square baking pan with parchment paper and set aside.
  • Add the butterscotch chips, peanut butter, and butter to a large pot or saucepan over medium-low heat. 
    310 grams butterscotch chips, 250 grams peanut butter, 57 grams butter
  • Stir the mixture constantly until it is completely melted and smooth.
  • Take the pot off the heat and fold in the marshmallows and vanilla quickly.
    280 grams rainbow mini marshmallows, 1 teaspoon vanilla extract
  • Pour the mixture into the prepared pan. Spread with a rubber spatula or the back of a spoon into an even layer.
  • Refrigerate for about 1 hour or until they're slightly hardened and set.
  • Remove from the pan, slice into squares, and enjoy!

Video

Notes

Refrigerate the marshmallows for a few minutes before adding to the hot peanut butter to keep them from melting.
Storage: Store leftover squares in an airtight container in the refrigerator for up to 5 days.
Freezing: Freeze in a freezer-safe bag or container for up to 2 months.

Nutrition

Serving: 1squareCalories: 251kcalCarbohydrates: 35.3gProtein: 3.9gFat: 11.5gSaturated Fat: 3.8gPolyunsaturated Fat: 2.1gMonounsaturated Fat: 4.9gTrans Fat: 0.1gCholesterol: 9.4mgSodium: 179.7mgPotassium: 90.8mgFiber: 0.8gSugar: 27.4gVitamin A: 108.4IUCalcium: 9.8mgIron: 0.3mg
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