Peanut Butter Marshmallow Squares Recipe

These classic Butterscotch Peanut Butter Marshmallow Squares are one of my favourite nostalgic childhood treats. Creamy peanut butter and butterscotch chips mixed in with rainbow coloured marshmallows are truly a match made in heaven! 

These No Bake Peanut Butter Marshmallow Squares are from my repertoire of my Grandma Yvette’s recipes, she was the baking and cooking queen! Having treats ready for company at any time was really common in my grandma’s house. 

If you stopped by there would always be a fresh batch of her famous Chocolate Chip Cookies, her mouth watering Gluten Free Lemon Poppyseed Muffins, her amazing 5 Ingredient Peanut Butter Balls or these Peanut Butter Butterscotch Marshmallow Squares!

I’m actually not the biggest fan of butterscotch. But when it comes to these bars, I AM OBSESSED.

I’m convinced it has something to do with the salt in the peanut butter, which makes the butterscotch less sweet and butterscotch-y. Instead all I taste is creamy, marshmallow goodness!

This recipe goes by a lot of different names. Peanut butter marshmallow bars, confetti squares, confetti bars, no bake goodie bars, etc.

Whatever you choose to call them, they are extremely popular to make during the holiday season! Always one of my favorite no bake treats around Christmas time.

WHY YOU’LL LOVE THESE BUTTERSCOTCH CONFETTI SQUARES

You’re going to absolutely love this Peanut Butter Marshmallow Squares recipe. 

First off, they’re incredibly easy to make – you just need a few simple ingredients and a little bit of time. 

The combination of smooth peanut butter and fluffy marshmallows creates this amazing, melt-in-your-mouth texture that’s so satisfying. Plus, they’ve got that perfect balance of sweet and salty that makes them totally addictive. 

Whether you’re looking for a special treat to whip up for a party or just something fun to snack on at home, these squares are a real crowd-pleaser. 

Trust me, once you try them, they’ll become a go-to favorite. They’re also great for making with kids because there’s no baking involved, just some mixing and chilling. 

Give them a try – you won’t be disappointed!

SIMPLE INGREDIENTS YOU NEED FOR THE PEANUT BUTTER MARSHMALLOW SQUARES RECIPE

You will need the following ingredients listed below to make these delicious squares (the exact measurements, nutrition information and full recipe are in the printable recipe card at the end of this post):

• Peanut Butter (Creamy or Crunchy) – for this recipe my grandmother used to always use creamy peanut butter. Can also use natural peanut butter, unsalted peanut butter, crunchy peanut butter, organic peanut butter or good old fashioned jif peanut butter. 
• Butterscotch Chips – I typically use the Chipits butterscotch chips. There are lower sugar options like Lilys butterscotch candies, and I’m sure you could also find vegan butterscotch chips as well! Some individuals who have tested out this recipe have also substituted some of the butterscotch chips for regular chocolate chips to cut down the sweetness. 
• Butter – my grandmother always used regular unsalted butter. You could try this recipe using vegan butter as well if you like or if you’re sensitive to dairy. 
• Rainbow Marshmallows – rainbow mini marshmallows recipes have to be the best recipes around. You are more than welcome to use regular mini white marshmallows for this no bake bar, but it might not be as fun! 
• Vanilla extract – because it just adds a little something something to marshmallow dessert recipes!
• Optional – Rice Krispies for a crunch, brown sugar, dark chocolate chips, etc.

KITCHEN TOOLS REQUIRED

• Large pot – my favorite is the Our Place Perfect Pot in color “steam”.
• Rubber spatula
• 8×8 baking pan
• Parchment paper

HOW TO MAKE THE EASY PEANUT BUTTER MARSHMALLOW SQUARES

1. In a large pot over medium-low heat, combine the butterscotch chips, peanut butter and butter. Stir frequently until the mixture is completely melted.
2. Let cool, and fold in marshmallows and vanilla extract quickly. I like to throw my marshmallows in the freezer for 10 minutes before this step to prevent them from melting all together.
3. Pour the mixture into a lined 8×8 or 9×9 inch square pan and spread evenly. Refrigerate for 1 hour minimum to set, then cut into bars. Store in refrigerator or freezer (I actually prefer my peanut butter squares straight from the freezer).

TIPS AND TRICKS FOR BEST RESULTS

• Typically before I start making these butterscotch peanut butter marshmallow squares, I throw the bag of marshmallows in the freezer. This way the marshmallows don’t melt when the peanut butter mixture is still slightly warm and hits them.
• Not only does refrigerating them help them firm up faster so you can eat them faster, but these squares taste way better cold. The combination of peanut butter with the cold marshmallows is just a match made in heaven!
• Believe it or not, these are even BETTER when they are frozen.
• I like using crunchy peanut butter for this recipe because it gives the bars a nice crunch. Also ensure to use a tasty peanut butter, preferably a salted one for this recipe!
• The combo of the salt from the peanut butter and sweetness from the melted butterscotch chips is amazing.
• It’s a quick recipe that comes together within 5 minutes and probably takes about 2-3 hours to set before you can cut them into bars. But you can speed up the cooling time by sticking the bars in the fridge!
• Or if you live in a cold climate like me, stick them outside or on your porch, which acts as a second fridge all winter season.

STORING LEFTOVER PEANUT BUTTER SQUARES

1. Airtight Container: Place the squares in an airtight container to maintain freshness.
2. Layering: If you need to stack the squares, place a piece of parchment paper or wax paper between each layer to prevent them from sticking together.
3. Refrigerate: Store the container in the refrigerator. The squares will stay fresh for up to a week.
4. Freeze for Longer Storage: For longer storage, you can freeze the squares. Place them in a freezer-safe bag or container. They can be frozen for up to 3 months. When you’re ready to enjoy them, let them thaw at room temperature for a few minutes.

FAQS

DO I REALLY NEED TO LET THE MIXTURE COOL BEFORE ADDING MARSHMALLOWS?

Yes, let the mixture cool slightly to prevent the marshmallows from melting completely.

ARE THESE NO BAKE TREATS SUITABLE FOR SUMMER MONTHS?

Yes, they are perfect for summer as they don’t require baking.

WHAT MAKES THESE CONFETTI SQUARES SO PERFECT FOR PEANUT BUTTER LOVERS?

The rich, creamy peanut butter base makes these squares a perfect treat for peanut butter enthusiasts.

CAN I MAKE THESE PEANUT BUTTER MARSHMALLOW SQUARES AHEAD OF TIME?

Yes, you can make them a day or two in advance. Just store them in the refrigerator until you’re ready to serve.

CAN I ADD OTHER MIX-INS TO THE PEANUT BUTTER MARSHMALLOW SQUARES?

Absolutely! Feel free to add other mix-ins like chopped nuts, Rice Krispies, dried fruit, or even crushed pretzels for added texture and flavor.

Other Easy Recipes To Curb A Sweet Tooth!

• 3 Ingredient Funfetti Cake Pops
• Chocolate Peanut Butter Crunch Bites
• 5 Ingredient Easy Biscoff Cheesecake
• Chocolate Caramel Shortbread Millionaire Bars
• Christmas Cookie Fudge Recipe
• Easy Chocolate Peppermint Truffles
• Gluten Free Chocolate Fudge Crinkle Cookies
• The Best Brown Butter Rice Krispie Squares
• Chocolate Peanut Butter Pie
• Gluten-Free Muddy Buddies (Puppy Chow)
• 3-Ingredient Chocolate Peanut Butter Fudge
• Gluten-Free Hot Chocolate Cookies

Note: This post may contain affiliate links, so you can conveniently find the ingredients you need to make the peanut butter confetti squares.

IF YOU TRIED THESE BUTTERSCOTCH SQUARES PLEASE LEAVE A COMMENT AND STAR RATING. I LOOK FORWARD TO SEEING YOUR CREATIONS! YOU CAN PIN THESE PAYDAY BARS ON PINTEREST OR SHARE ON INSTAGRAM BY TAGGING @basicswithbails and #basicswithbails