Dec 15, 2018

An informal poll of in my Instagram story revealed that 70% of you aren’t familiar with these delicious treats. That tells me they might be a Canadian thing. Creamy peanut butter butterscotch squares, plump with coloured marshmallows, were on every cookie plate I ever was offered as a kid. You need them in your life.

An Easy, No-Bake Peanut Butter Marshmallow Square Recipe

All you need to make these scrumptious bars is a microwave-safe large measuring cup or bowl and a baking pan. Add peanut butter, butter, and butterscotch chips to the bowl, give them a gentle melt, then pour them over the marshmallows in the pan. Lining the pan with parchment paper makes for the easiest lifting out and clean-up.

Tips for the Best Butterscotch Peanut Butter Marshmallow Squares

Not only does refrigerating them help them firm up faster so you can eat them faster, I’d argue that peanut butter butterscotch bars taste better cold. There’s something about a chewy, cold marshmallow against a creamy peanut butter base that really gets me. I actually employ the chill at two stages. Before I even start the recipe, I toss the bag of marshmallows in the freezer. This ensures they don’t melt when the warm peanut butter-butterscotch mixture hits them. Despite using white mini marshmallows in these pictures, I actually really love these bars with coloured variety. Use a tasty peanut butter. Not the gritty kind you grind yourself at the grocery store that has no salt and uses (semi-rancid) unroasted peanuts. I actually prefer salted in this recipe. It adds a nice contrast to the sweet butterscotch.

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