No-Bake Butterscotch Marshmallow Peanut Bars

These indulgent no-bake bars combine melted butterscotch chips with creamy peanut butter to create a rich base that binds together crunchy peanuts, cereal, and fluffy mini marshmallows. The result is a sweet and satisfying treat with varied textures in every bite. Perfect for potlucks, bake sales, or when you need a quick dessert without turning on the oven. The bars set up firm at room temperature and can be stored either on the counter or refrigerated for a firmer texture.
Ingredients
Instructions
- 1
Spray a 9x13-inch pan with non-stick spray or line with waxed paper or parchment paper
- 2
Add butter, peanut butter, and butterscotch chips to a large, deep saucepan over medium-low heat
- 3
Stir frequently until the mixture is completely melted and smooth
- 4
Remove from heat and fold in peanuts, cereal, and marshmallows until everything is evenly coated
- 5
Pour the mixture into prepared pan and spread evenly
- 6
Cool completely before cutting, refrigerating if desired to speed cooling process
- 7
Cut into bars once completely cooled
Tips
Use salted butter if preferred, but omit any additional salt from the recipe
Don't cover the pan until bars are completely cooled to prevent condensation
Refrigerate for firmer bars or keep at room temperature for softer texture
Good to Know
Store in an airtight container on the counter for up to 1 week or refrigerate for up to 2 weeks
Can be made up to 3 days in advance and stored covered
Serve at room temperature for softer texture or chilled for firmer bars
Common Mistakes
Don't cover while cooling to avoid condensation making bars soggy
Avoid high heat when melting to prevent scorching the mixture
Substitutions
Dairy-Free Swaps
Nut-Free Alternatives
General Alternatives
crunchier texture
FAQ
Can I use regular marshmallows instead of mini?
Yes, but use about 2/3 the amount and cut them into smaller pieces for better distribution throughout the bars.
How long do these bars keep?
They keep for up to 1 week at room temperature or 2 weeks refrigerated in an airtight container.
Can I freeze these bars?
Yes, wrap individual bars or store in freezer containers for up to 3 months. Thaw at room temperature before serving.