Introduction

These Butterscotch Marshmallow Bars are a delightful treat combining rich, gooey butterscotch with creamy peanut butter and soft miniature marshmallows. They’re simple to make and perfect for a sweet snack or dessert that both kids and adults will enjoy.

The image shows many square pieces of fudge with a smooth, shiny light brown caramel layer on top, mixed with irregular chunks of white marshmallows that peek through. Each piece is cut neatly and arranged close together on a white marbled surface, showing a thick, slightly grainy texture of the caramel layer connecting the soft marshmallows. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

½ cup (1 stick / 113 g) unsalted butter
2 cups (340 g) butterscotch chips
¾ cup (190 g) creamy peanut butter
4 cups (200 g) miniature marshmallows

Instructions

Step 1: Line an 8×8-inch baking pan with parchment paper, leaving some overhang on the sides for easy removal later. Set aside.
Step 2: In a large microwave-safe bowl, combine butter, butterscotch chips, and peanut butter. Microwave in 30-second intervals, stirring after each, until smooth and fully melted, about 1 to 1½ minutes total.
Step 3: Let the mixture sit at room temperature for 10–15 minutes to cool slightly. This helps prevent the marshmallows from melting when added.
Step 4: Gently fold in the miniature marshmallows until they are fully coated in the butterscotch-peanut butter mixture.
Step 5: Transfer the mixture to the prepared pan and press into an even layer with a spatula. Refrigerate for at least 2 hours, or until firm and set.
Step 6: Use the parchment paper overhang to lift the bars out of the pan. Cut into squares and serve.

Tips & Variations

For an extra crunch, try folding in chopped nuts like peanuts or pecans before pressing the mixture into the pan.
You can substitute creamy peanut butter with almond or cashew butter for a different flavor.
If you prefer a softer bar, reduce the refrigeration time slightly but watch closely to maintain shape.
Use a pan with slightly larger or smaller dimensions to adjust thickness—just monitor setting time accordingly.

Storage

Store the bars in an airtight container at room temperature for up to 3 days or in the refrigerator for up to 1 week. If refrigerated, allow bars to sit at room temperature for a few minutes before serving for the best texture.

How to Serve

The image shows two square pieces of fudge stacked on a white marbled surface. Each piece is made of a smooth, caramel-colored layer mixed with large, white marshmallow chunks that look soft and fluffy. The caramel layer swirls around the marshmallows, creating a thick, rich texture with a glossy finish on top. In the background, more of these fudge squares are visible, slightly out of focus. The overall look is creamy and dense, with a warm, inviting color contrast between the caramel and white marshmallows. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use regular-sized marshmallows instead of mini ones?

Miniature marshmallows work best for even coating and texture. If you use regular-sized marshmallows, chop them into smaller pieces so they incorporate evenly.

What if I don’t have butterscotch chips?

You can substitute butterscotch chips with white chocolate chips mixed with a teaspoon of brown sugar or maple syrup for a similar sweet flavor, though the taste will differ slightly from classic butterscotch.

Butterscotch Marshmallow Bars Recipe

Print Recipe

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4.8 from 83 reviews

These Butterscotch Marshmallow Bars are a delightful no-bake treat combining rich butterscotch, creamy peanut butter, and sweet miniature marshmallows. Perfect for quick and easy dessert lovers, they set in the refrigerator and boast a chewy, flavorful texture that’s sure to satisfy your sweet tooth.

Author: Kai
Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 2 hours 12 minutes
Yield: 16 bars 1x
Category: Dessert
Method: No-Cook
Cuisine: American
Diet: Vegetarian

Ingredients

Scale

Ingredients

½ cup (1 stick / 113 g) unsalted butter
2 cups (340 g) butterscotch chips
¾ cup (190 g) creamy peanut butter
4 cups (200 g) miniature marshmallows

Instructions

Prepare the Pan: Line an 8×8-inch baking pan with parchment paper, leaving some overhang on the sides for easy removal later, and set aside.
Melt Ingredients: In a large microwave-safe bowl, combine the butter, butterscotch chips, and creamy peanut butter. Microwave the mixture in 30-second intervals, stirring after each interval, until the mixture is smooth and fully melted. This should take about 1 to 1½ minutes total.
Cool the Mixture: Allow the melted mixture to sit at room temperature for 10 to 15 minutes. This step is essential to prevent the marshmallows from melting prematurely when added.
Incorporate Marshmallows: Gently fold in the miniature marshmallows, making sure they are completely coated with the butterscotch and peanut butter mixture.
Transfer and Chill: Pour the mixture into the prepared pan and press down evenly with a spatula. Refrigerate for at least 2 hours or until firm and fully set.
Serve: Using the parchment paper overhang, lift the bars out of the pan and cut into squares. Serve chilled for the best texture and flavor.

Notes

Make sure to let the melted mixture cool before adding marshmallows to avoid melting them.
Use parchment paper for easy removal and clean cuts.
Store bars in an airtight container in the refrigerator to maintain freshness.
For a nut-free version, omit the peanut butter and consider using sunflower seed butter.

Keywords: butterscotch bars, marshmallow bars, no bake dessert, peanut butter treats, easy sweets