Marshmallow Peanut Butter Squares Recipe
Marshmallow Peanut Butter Squares are a no-bake, sweet treat combining creamy peanut butter, butterscotch chips, and fruity mini marshmallows. These bars have a rich, buttery flavor with a chewy texture and a hint of vanilla, perfect for an easy dessert or snack that sets firmly in the fridge.
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Total Time: 2 hours 20 minutes
- Yield: 16 squares 1x
- Category: Dessert
- Method: Stovetop
- Cuisine: American
Ingredients
Scale
Peanut Butter Mixture
- ½ cup unsalted butter
- 1 cup creamy peanut butter (Peter Pan brand used)
- 11 ounces butterscotch chips (Nestle Toll House brand used)
- 1 teaspoon vanilla extract
Marshmallows
- 10 ounces fruity-flavored mini marshmallows (Jet-Puffed brand used)
Instructions
- Prepare the pan: Line an 8×8-inch straight-sided baking pan with parchment paper, leaving enough overhang on the sides to lift out the bars later. Lightly spray the parchment with non-stick baking spray to ensure easy removal of the squares.
- Melt butter, peanut butter, and chips: In a 3½ to 4-quart saucepan over medium-low heat, add the unsalted butter, creamy peanut butter, and butterscotch chips. Stir continuously until everything is melted smoothly and well combined.
- Add vanilla and cool: Stir in the vanilla extract and remove the pan from heat. Allow this mixture to cool for 2 to 3 minutes so it won’t melt the marshmallows when mixed in.
- Combine with marshmallows: Place the mini marshmallows in a large mixing bowl. Pour the slightly cooled peanut butter and butterscotch mixture over them. Gently fold together until all marshmallows are evenly coated with the mixture.
- Transfer and even out: Pour the combined mixture into the prepared pan. Spread evenly into a smooth layer using a spatula.
- Chill to set: Refrigerate the pan for 1½ to 2 hours, or until the mixture is completely firm and set.
- Remove from pan: Using the parchment paper overhangs, gently lift the firm peanut butter bars out of the pan and place them on a large cutting board.
- Slice into squares: Using a large sharp knife, cut into 16 equal squares. For neat slices, you can run the knife under hot water and wipe it clean between each cut.
Notes
- Make sure the peanut butter mixture is cooled before adding marshmallows to avoid melting them.
- Using parchment paper with an overhang ensures easy removal of the bars from the pan.
- Chill time is essential to achieve the perfect firm texture before slicing.
- You can substitute butterscotch chips with white chocolate chips for a different flavor profile.
- Store the bars in an airtight container in the refrigerator for up to a week.
Keywords: marshmallow peanut butter squares, no-bake dessert, butterscotch peanut butter bars, easy peanut butter treats, fruity marshmallow bars
