Peanut Butter Butterscotch Marshmallow Bars

As an Amazon Associate, I earn from qualifying purchases. Read the full disclosure here.

These easy, no-bake Peanut Butter Butterscotch Marshmallow Bars (or squares as some call it) are the ultimate comfort food mashup! Nutty, creamy, and gooey treats that can be made in less 15 minutes!  A definite 5 star recipe the whole family will love using only 4 simple ingredients!

More marshmallow goodies? You’ll also be craving these M&M Marshmallow Bars, these Fluffy Chocolate Marshmallow Peanut Clusters and this Heavenly Chocolate Rocky Road Candy!

best and easy Peanut Butter Butterscotch Marshmallow Bars squares no bake recipe

Why No One Can Resist These Peanut Butter Butterscotch Marshmallow Bars

  • Imagine a gooey, marshmallow-filled bar with creamy peanut butter and hints of butterscotch that melt in your mouth with every bite. It’s a dessert dream come true.
  • It’s not just a fantasy! These indulgent bars are a crowd-pleasing favorite, combining the comforting flavors of childhood with a sophisticated twist.
  • Super simple to make for parties, the holiday season and when you’re wanting a sweet treat throughout the week that you can make in 15 minutes using only 4 ingredients!
  • You’ll have to chill them so they peanut butter and butterscotch fudge sets up, so that’s the hardest part of this recipe! Patiently waiting to take a bite!
  • Get ready to satisfy your sweet tooth and learn how to make this delectable dessert for your next gathering. But be warned – one bite and you’ll be hooked.

best and easy Peanut Butter Butterscotch Marshmallow Bars squares no bake recipe

Gather Your Ingredients

no bake Peanut Butter Butterscotch Marshmallow squares recipe

  • ½ cup salted butter
  • 1 cup creamy peanut butter 
  • 1 (11 ounce) package butterscotch chips, 2 cups
  • 4 cups miniature marshmallows or rainbow colored marshmallows, add up to 1 cup more of marshmallows if you prefer more for confetti squares!

best and easy Peanut Butter Butterscotch Marshmallow Bars squares no bake recipe

Instructions How to Make Peanut Butter Butterscotch Marshmallow Squares

  1. Line an 8×8 baking pan with parchment paper.
  2. In a large saucepan over medium heat melt the butter, the add the peanut butter and butterscotch chips stirring frequently.  You can also combine the butter, peanut butter and butterscotch chips in a microwave-safe bowl and microwave in 30 second increments, reducing to 15 second increments until the mixture is melted and combined stirring between each increment.
  3. Allow peanut butter mixture to cool 5 minutes, because you’ll risk melting the marshmallows.
  4. Fold in miniature marshmallows and pour into your lined prepared pan.
  5. Refrigerate these no bake butterscotch marshmallow bars for at least 1 hour before cutting into squares and serving.  

tutorial how to make

More Variations

  • Use colored rainbow marshmallows around the Easter holidays, St. Patrick’s Day or whenever you want a pastel burst of color in your squares.
  • Want some texture? Add some m&m candies, roasted peanuts or some shredded coconut. There are so many add-ins you can play with here!
  • Switch up the butterscotch chocolate chips with semi-sweet chocolate chips, if you’re wanting a chocolate peanut butter revelation!
  • If you use a different nut butter other than peanut butter, make sure it’s a creamy variation for the best outcome.

Storing Squares

  • Store these no bake bars in an airtight container in the fridge for up to 5 days. Bars can be frozen for up to 2 months, then thaw overnight in the fridge.

best and easy Peanut Butter Butterscotch Marshmallow Bars squares no bake recipe

In conclusion, our Peanut Butter Butterscotch Marshmallow Bars are the perfect combination of sweet, salty, and gooey goodness. From their simple ingredients to their decadent taste, these bars are a crowd-pleaser that will have your guests begging for the recipe. These bars are not only delicious, but also versatile, easy to make, and perfect for any occasion.

So why not grab some peanut butter, butterscotch chips, and marshmallows and whip up a batch today? Trust us, you won’t regret it because 9 out of 10 taste-testers agree that Peanut Butter Butterscotch Marshmallow Bars are a must-try. So go ahead and join in!

Recently The Baking ChocolaTess Blog was featured in Feedspot Top 50 Dessert Blogs and in FeedSpot Top 45 Chocolate Influencers for 2025!  Celebration is in order! Thanks Feedspot! Share on PinterestInstagram and Facebook!

Craving More? 

Peanut Butter Butterscotch Marshmallow Bars

Kim Lange
These easy, no-bake Peanut Butter Butterscotch Marshmallow Bars are the ultimate comfort food mashup! Nutty, creamy, and gooey treats that can be made in less 15 minutes!  A definite 5 star recipe the whole family will love using only 4 simple ingredients!
No ratings yet
Prep Time 15 minutes
chill in fridge 1 hour
Course Dessert
Servings 12 Servings
Calories 251 kcal

Ingredients
 
 

  • ½ cup salted butter
  • 1 cup creamy peanut butter
  • 2 cups butterscotch chips 1 - 11 ounce package
  • 4 cups miniature marshmallows you can add up to an extra cup of marshmallows if you want more marshmallow and less peanut butter/butterscotch fudge, I wouldn't recommend adding more.

Instructions
 

  • Line an 8×8 baking pan with parchment paper.
  • In a large saucepan over medium heat melt the butter, the add the peanut butter and butterscotch chips stirring frequently. You can also combine the butter, peanut butter and butterscotch chips in a microwave-safe bowl and microwave in 30 second increments, reducing to 15 second increments until the mixture is melted and combined stirring between each increment.
  • Allow peanut butter/butterscotch mixture to cool 5 minutes, because you’ll risk melting the marshmallows.
  • Fold in miniature marshmallows and pour into your lined prepared pan.
  • Refrigerate for at least 1 hour before cutting into squares and serving.

Nutrition

Calories: 251kcalCarbohydrates: 19gProtein: 5gFat: 19gSaturated Fat: 7gPolyunsaturated Fat: 3gMonounsaturated Fat: 7gTrans Fat: 0.3gCholesterol: 20mgSodium: 168mgPotassium: 124mgFiber: 1gSugar: 12gVitamin A: 237IUCalcium: 13mgIron: 0.4mg
Keyword bars, butterscotch, marshmallow, no bake, peanut butter
Tried This Recipe?Let us know how it was by commenting below!

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating