Description

These Marshmallow Peanut Butter Squares combine creamy peanut butter, rich butterscotch chips, and fruity mini marshmallows for a sweet, chewy treat. Perfect for a no-bake dessert or snack, these squares are easy to prepare on the stovetop and chilled until firm, making a delightful, melt-in-your-mouth experience.

Ingredients

Scale

Main Ingredients

½ cup unsalted butter
1 cup creamy peanut butter (Peter Pan brand recommended)
11 ounces butterscotch chips (Nestle Toll House brand recommended)
1 teaspoon vanilla extract
10 ounces fruity-flavored mini marshmallows (Jet-Puffed brand recommended)

Instructions

Prepare Pan: Line an 8×8 inch straight-sided baking pan with parchment paper, leaving enough overhang on the sides for easy removal, then lightly spray with non-stick baker’s spray to prevent sticking.
Melt Ingredients: In a 3½ to 4-quart saucepan over medium-low heat, combine the unsalted butter, creamy peanut butter, and butterscotch chips. Stir continuously until everything is melted and the mixture is smooth.
Add Vanilla and Cool: Stir in the vanilla extract, then remove the saucepan from heat. Let the mixture cool for 2 to 3 minutes to prevent mini marshmallows from melting when incorporated.
Combine with Marshmallows: Place the fruity mini marshmallows in a large mixing bowl, then pour the slightly cooled peanut butter mixture over them. Gently fold the mixture until all the mini marshmallows are evenly coated.
Transfer to Pan: Pour and spread the combined mixture evenly into the prepared baking pan.
Chill: Refrigerate the pan for 1½ to 2 hours or until the mixture is completely firm.
Remove from Pan: Use the parchment paper overhang to lift the peanut butter bars out of the pan and place them onto a large cutting board.
Slice and Serve: Cut into 16 equal squares using a large sharp knife. For cleaner cuts, run the knife under hot water and wipe it dry between slices.

Notes

Use parchment paper with an overhang to easily lift the bars from the pan without breaking.
Cooling the peanut butter mixture before adding marshmallows prevents the marshmallows from melting and losing their texture.
To make slicing easier, warm the knife between cuts for clean and smooth edges.
These bars should be kept refrigerated to maintain their firmness and freshness.
You can substitute butterscotch chips with white chocolate chips for a different flavor profile.

Prep Time: 10 minutes
Cook Time: 5 minutes
Category: Dessert
Method: Stovetop
Cuisine: American

Keywords: Marshmallow Peanut Butter Squares, no-bake dessert, peanut butter treats, butterscotch marshmallow bars, easy dessert recipes