Classic Peanut Butter Marshmallow Squares

Name: Classic Peanut Butter Marshmallow Squares
Prep time: 10 min
Cook time: 5 min
Total time: 135 min
Yield: 16 squares
Cuisine: Canadian
Ingredients: 1 1/2 cup smooth peanut butter; 1/2 cup unsalted butter (cubed); 2 cup butterscotch chips; 1 bag miniature marshmallows (about 400g)

135 min 16 squares Easy

All Recipes

Indulge in these classic no-bake peanut butter marshmallow squares, a perfect treat for any occasion.

Prep

10 min

Cook

5 min

Total

135 min

Servings

Difficulty

Easy

Peanut butter marshmallow squares are a beloved no-bake treat often found at Canadian gatherings and bake sales. Known for their irresistible combination of creamy peanut butter and sweet, fluffy marshmallows, these squares are a hit with both kids and adults alike. This version of the classic recipe is straightforward and quick, requiring only a few minutes on the stove and a short time in the fridge to set. It's perfect for those who crave a sweet snack but don't want to spend hours in the kitchen. Whether you're preparing for a potluck, a holiday party, or just want to enjoy a nostalgic treat, these peanut butter marshmallow squares are sure to satisfy your sweet tooth.

Instructions

Prepare the pan

Line a 9x9 inch (23x23 cm) baking dish with parchment paper, leaving overhang on the sides for easy removal.

Pro tip: Use metal clips to hold the parchment paper in place.

Melt the base ingredients

In a large saucepan, melt the peanut butter, butter, and butterscotch chips over low heat, stirring constantly until smooth and well combined.

Pro tip: Ensure the heat is low to prevent the mixture from burning.

Cool the mixture

Remove the saucepan from heat and let the mixture cool for about 5 minutes.

Pro tip: Cooling slightly prevents the marshmallows from melting.

Add marshmallows

Fold the miniature marshmallows into the cooled peanut butter mixture until evenly distributed.

Pro tip: Gently fold to keep the marshmallows intact.

Transfer to pan

Pour the mixture into the prepared baking dish, spreading it evenly with a spatula.

Pro tip: Press down gently to compact the mixture.

Chill the squares

Refrigerate the dish for at least 2 hours or until firm.

Pro tip: For a firmer texture, chill overnight.

💡

Tips & Tricks

Use a heavy-bottomed saucepan to prevent scorching.
Chill the squares for at least two hours for easier cutting.
For a nutty crunch, add chopped peanuts to the mixture.

Frequently Asked Questions

What are peanut butter marshmallow squares?

They are no-bake dessert bars made with peanut butter, butterscotch chips, and marshmallows.

Can I freeze peanut butter marshmallow squares?

Yes, you can freeze them in an airtight container for up to a month.

How long do peanut butter marshmallow squares last?

They last up to a week in the fridge when stored in an airtight container.

What can I substitute for butterscotch chips?

You can use white chocolate chips or chocolate chips as a substitute.

Why does my marshmallow mixture melt?

If the peanut butter mixture is too hot, it can melt the marshmallows. Let it cool before adding them.

Serving Suggestions

Serve these peanut butter marshmallow squares chilled straight from the fridge for the best texture. They pair wonderfully with a cup of coffee or a cold glass of milk. These squares can be made ahead of time and stored in an airtight container in the fridge for up to a week. If you need to prepare them in advance, they're also freezer-friendly for up to a month—simply thaw at room temperature before serving.

Nutrition per serving

220

Calories

Protein

13g

Fat

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