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Peanut Butter Marshmallow Squares are a family Christmas staple and one of my favourite nostalgic childhood treats. They are way too easy to make for how delicious they are, which makes them the perfect no-bake holiday dessert. This recipe is straight out of my moms Company’s Coming Cookbook that is at least 25 years old, so you know this recipe is good.
I’ve heard these treats referred to as many different names: confetti square, peanut butter squares, butterscotch squares, marshmallow squares; the list goes on! We call them Peanut Butter Marshmallow Squares, but however you choose to refer to them, chances are they are all made fairly similar using the same 5 ingredients: butter, butterscotch chips, peanut butter, vanilla and mini marshmallows.
Here’s the cookbook we refer to when making these Peanut Butter Marshmallow Squares, so if you are looking for a tried and true recipe, this one is definitely it.
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6 reasons to make this recipe
- A no-bake dessert that can be whipped up in under 20 minutes.
- Such a simple, rich and nostalgic dessert.
- A fool proof recipe that requires absolutely no baking skills to make.
- The perfect make-ahead dessert that works well for any get-together (especially around the holidays).
- Easy to make as it requires only a few simple ingredients.
- A great dessert option if you are looking for something that is freezer friendly.
Ingredients
- Butter
- Butterscotch chips
- Peanut butter
- Mini marshmallows: we use one bag of white and one bag of multi-coloured.
- Splash of vanilla
Looking for more dessert recipes?
Take a look at a few of my personal favs down below:
- Peanut Butter Marshmallow Squares
- Thumbprint Cookies
- No-Bake Biscoff Cheesecake
- Caramel Apple Crisp
- Lemon Ricotta Cookies
- Morning Glory Muffins
Substitutions & FAQ’s
Can I use a crunchy peanut butter?
You sure can! It all depends on the overall texture you’re going for, but yes, you totally could.
Can I cut this recipe in half to make a smaller batch?
Yes! This recipe works really well if you want to make a half batch.
Storage:
These squares will keep fresh in an airtight container for up to 7 days. They also freeze like a dream; I recommend cutting them into squares, and then adding them to an airtight container. These will last up to 4 months in the freezer. When you want some, just take them out 2-3 hours before serving.
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Peanut Butter Marshmallow Squares
Ingredients
- 1/2 cup butter, salted
- 1 cup peanut butter , smooth or crunchy
- 1 package butterscotch chips (300 grams per bag), or chocolate
- 1 bag mini marshmallows (250 gram bag), white or rainbow
- 1 tsp vanilla extract
Instructions
- Begin by putting your bags of mini marshmallows in the freezer while you prepare everything. If you can, leave your marshmallows in the freezer for 45 minutes before preparing this recipe.This will help the marshmallows hold their shape and avoid melting when added to the chocolate and peanut butter mixture.
- To a large pot, add your butterscotch chips and begin melting on low heat, stirring often to avoid the chocolate from burrning.
- Once the chocolate is 75% melted (about 2-3 minutes), add your peanut butter and cook for another 2 minutes on low heat, stirring often.
- Add your butter and vanilla and continue mixing on low heat until everything is incorporated and smooth. About 2 minutes.
- Remove mixture from heat and let cool for 5 minutes.
- Prepare a large baking dish with parchment paper and set aside.
- Add in your marshmallows from the freezer.Fold the marshmallows gently into the mixture until just combined.
- Add your marshmallow mixture to the prepared baking dish, spread evenly, and cover with plastic wrap and refrigerate for at least 1.5 hours, or overnight.
- Cut into desired sized squares and enjoy!
Nutrition information is automatically calculated, so should only be used as an approximation.
