Want a sweet treat that’s super easy? Try Peanut Butter Marshmallow Squares Recipe! This no-bake dessert is perfect for everyone.
Kids and adults both love these chewy squares. You only need a few simple ingredients. The peanut butter marshmallow squares recipe takes just 15 minutes.
No oven needed for this delicious treat. These squares are great for parties or snacks.
Learn how to make peanut butter marshmallow squares today. You’ll want to make them again and again!
When I First Discovered Peanut Butter Marshmallow Squares
I first tasted these at a friend’s party. They were so good I asked for the recipe! The combination of peanut butter and marshmallow was amazing.
Sweet and creamy in every bite. I made them the very next day. My family couldn’t stop eating them.
Now it’s my go-to dessert recipe. Everyone always asks me to bring these squares.

Equipment List
You don’t need much for this recipe. Here’s what you’ll use:
- Large mixing bowl
- Wooden spoon or spatula
- 9×9 inch baking pan
- Parchment paper
- Medium saucepan
- Measuring cups and spoons
Ingredients You Need for Peanut Butter Marshmallow Squares
Gather these simple ingredients for peanut butter marshmallow squares:
- 1 cup creamy peanut butter
- 4 cups mini marshmallows
- 3 cups rice cereal
- 3 tablespoons butter
- 1 teaspoon vanilla extract
- Pinch of salt
Step-by-Step Guide
- Line your baking pan with parchment paper.
- This prevents sticking later.
- Set it aside for now.
- Put butter in your saucepan over low heat.
- Let it melt completely.
- Don’t let it burn.
- Stir peanut butter into the melted butter.
- Mix until smooth and creamy.
- Keep the heat on low.
- Add marshmallows to the peanut butter mixture.
- Stir constantly until they melt completely.
- This takes about 3-4 minutes.
- Remove the pan from heat now.
- Stir in vanilla extract and salt.
- Mix everything together well.
- Pour rice cereal into your mixing bowl.
- Add the marshmallow mixture on top.
- Fold everything together gently but thoroughly.
- Transfer mixture to your prepared baking pan.
- Press down firmly with your spatula.
- Make the surface as even as possible.
- Refrigerate for at least 2 hours.
- They need time to firm up completely.
- Remove from pan using the parchment paper.
- Cut into 16 equal squares.
- Enjoy your homemade treats!
Tips to Make the Best Peanut Butter Marshmallow Squares
- Use fresh marshmallows for better melting.
- Old ones don’t work as well.
- Grease your spatula before pressing the mixture down.
- This prevents sticking to your hands.
- Work quickly once marshmallows are melted.
- The mixture hardens as it cools.
- Store squares in an airtight container at room temperature.
- They stay fresh for up to 5 days.
- You can also freeze them for longer storage.
FAQs About Peanut Butter Marshmallow Squares
Q: Can I use crunchy peanut butter instead?
A: Yes, you absolutely can use crunchy peanut butter. It adds extra texture to your squares.
Q: Do these need to be refrigerated?
A: They don’t need refrigeration for short-term storage. Room temperature works fine for 3-5 days.
Q: Can I add chocolate chips?
A: Yes, fold in chocolate chips before pressing mixture. About half cup works perfectly well.
Q: What if my mixture is too sticky?
A: Let it cool slightly before pressing into pan. Use greased hands to handle it better.
Q: Can I make these ahead of time?
A: Yes, these squares are perfect for making ahead. They stay fresh for several days easily.
Final Thoughts
Peanut butter marshmallow squares are incredibly easy to make. This recipe is perfect for busy weekdays.
Your family will love these sweet treats. They’re great for baking with kids too. The no-bake aspect makes them stress-free.
Try this peanut butter marshmallow squares recipe today. You won’t regret adding it to your collection!
More Amazing Recipes
- Martha Stewart French Toast Recipe
- Martha Stewart Blueberry Muffins Recipe
- Martha Stewart Egg Strata Recipe
- Martha Stewart Blueberry Muffins Recipe

Peanut Butter Marshmallow Squares Recipe
Equipment
- Large mixing bowl
- Wooden spoon or spatula
- 9×9 inch baking pan
- Parchment paper
- Medium saucepan
- Measuring cups and spoons
Ingredients
- 1 cup creamy peanut butter
- 4 cups mini marshmallows
- 3 cups rice cereal
- 3 tablespoons butter
- 1 teaspoon vanilla extract
- Pinch of salt
Instructions
- Line your baking pan with parchment paper.
- This prevents sticking later.
- Set it aside for now.
- Put butter in your saucepan over low heat.
- Let it melt completely.
- Don’t let it burn.
- Stir peanut butter into the melted butter.
- Mix until smooth and creamy.
- Keep the heat on low.
- Add marshmallows to the peanut butter mixture.
- Stir constantly until they melt completely.
- This takes about 3-4 minutes.
- Remove the pan from heat now.
- Stir in vanilla extract and salt.
- Mix everything together well.
- Pour rice cereal into your mixing bowl.
- Add the marshmallow mixture on top.
- Fold everything together gently but thoroughly.
- Transfer mixture to your prepared baking pan.
- Press down firmly with your spatula.
- Make the surface as even as possible.
- Refrigerate for at least 2 hours.
- They need time to firm up completely.
- Remove from pan using the parchment paper.
- Cut into 16 equal squares.
- Enjoy your homemade treats!
Notes
- Use fresh marshmallows for better melting.
- Old ones don’t work as well.
- Grease your spatula before pressing the mixture down.
- This prevents sticking to your hands.
- Work quickly once marshmallows are melted.
- The mixture hardens as it cools.
- Store squares in an airtight container at room temperature.
- They stay fresh for up to 5 days.
- You can also freeze them for longer storage.













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