Peanut Butter Marshmallow Squares

Confetti squares are the kind of retro treat that instantly brings back cozy, nostalgic memories. They’re wonderfully sweet, incredibly simple to make, and irresistibly fun with their colorful, marshmallow–studded look. Often called peanut butter marshmallow squares or butterscotch marshmallow squares, this classic dessert has a unique charm that feels both old-school and timeless.

At their core, they’re a soft, fluffy cloud of peanut butter goodness, held together with a rich butterscotch mixture that melts perfectly around the marshmallows. Every bite is sweet, chewy, and delightful, making them a hit at potlucks, parties, or anytime you need a quick no-bake treat that everyone will love.

Peanut Butter Marshmallow Squares

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Confetti squares are the kind of retro treat that instantly brings back cozy, nostalgic memories. They’re wonderfully sweet, incredibly simple to make, and irresistibly fun with their colorful, marshmallow–studded look.

Prep Time 15 minutes

Cook Time 1 hour

Total Time 1 hour 15 minutes

Ingredients

• 1/4 cup unsalted butter
• 1 cup peanut butter
• 1 bag butterscotch chips,,300g
• 4-5 cup rainbow marshmallows

Instructions

Step-By-Step Instructions

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Notes

• Store 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.