These Peanut Butter and Rice Krispies Bars are the perfect sweet treat. They are nostalgic, easy to make, no-bake and made with simple ingredients.

Sliced Peanut Butter and Marshmallow Rice Krispie Treats.

Rice Krispie Treats was always one of my favorite snacks as a kid. If I got one in my lunch at school, I was ecstatic!

And I’m not going to lie, I still love them! But now, I make them myself at home.

I wanted to put a fun twist on this childhood favorite by adding peanut butter and using some peanut butter cereal with the classic Rice Krispies cereal.

The peanut butter flavor is absolutely delicious and pairs well with the marshmallow.

It balances out the sweetness while still satisfying that nostalgic feeling we all love in a Rice Krispies Treat!

Main Ingredients

Ingredients to make peanut butter Rice Krispies bars.

Tips and Tricks

There are a few tips and tricks that you can do to make these Peanut Butter Rice Krispies Bars the most delicious and also the easiest to make!

Tips for Making the Bars

Using nonstick spray! This not only helps when removing from the pan but in other ways as well.

Spray your hands with nonstick so that you can easily press the mixture into the pan without it sticking to your hands.

When slicing the bars, spray your knife lightly with nonstick spray so that the knife doesn’t stick to any of the marshmallows.

When melting the marshmallows, make sure the heat is low to avoid the treats being too hard after setting.

Tips for the BEST Flavor and Texture

You want to make sure you’re using a high quality and pure vanilla extract.

Another tip is to melt the marshmallows on a low heat. If you burn the marshmallow mixture in the pot, that flavor will transfer into the treats as well.

Last, but definitely not least, make sure your marshmallows are fresh! Even if the marshmallows melt, it will be harder to chew the bars once set.

How to Make Peanut Butter and Rice Krispies Bars

  1. Line a 9×9 square baking pan with parchment paper or grease with nonstick/butter
  2. In a large pot, melt the salted butter on low heat
  3. Once melted, add the large marshmallows and vanilla extract 
  4. Continuously mix until they are melted together with the butter
  5. Remove from heat
  6. In a large mixing bowl, pour in the cereal
  7. Pour the marshmallow mixture over the cereal and mix
  8. Next, fold in the mini marshmallows so that there are extra little marshmallow pockets all throughout the mixture
  9. Transfer the mixture to the pan and press down firmly into an even layer
  10. PRO TIP: Spray your hands with nonstick for easy transfer and pressing down of the mixture
  11. Drizzle peanut butter on top of the treats
  12. Allow the treats to set for 45-60 minutes at room temperature (do not put in the fridge!)
  13. Slice into bars
  14. Enjoy!
Rice Krispie cereal in a bowl.
Rice Krispie and peanut butter cereal in a bowl.
Rice Krispie and peanut butter cereal in a bowl.
Marshmallows and butter in a pot.
Cereals and marshmallow mixture in a bowl.
Cereals and marshmallow mixture in a bowl.
Cereals and marshmallow mixture in a square baking pan.
Cereals and marshmallow mixture in a square baking pan.
Cereals and marshmallow mixture in a square baking pan topped with peanut butter.
Peanut Butter and Rice Krispies Treat Bars in a pan.
Holding a Peanut Butter and Rice Krispies Treat Bar in my hand.

Frequently Asked Questions

Can I use other cereals in this recipe?

Yes! You should be able to use any other cereal in this wrap. Swap at a 1:1 ratio and I recommend using cereals of a similar size and texture to yield the same result.

Some recommended cereals would be: Reese’s Puffs, Cinnamon Toast Crunch, Cheerios, Fruity Pebbles, Kix, Trix and Lucky Charms I recommend omitting the extra mini marshmallows if using this cereal).

Am I able to mix the cereal right into the pot with the marshmallow mixture?

Yes! Just make sure to remove from heat before adding in the cereal. Then continue following the instructions as stated.

How do I prevent the mixture from sticking to my hands?

Spray your hands with nonstick spray! This is the best trick to avoiding the marshmallow mixture from sticking to your hands.

Can I add other mix-ins to the bars?

You can! While some mix-ins could affect the end result, most should have no negative impact.

I recommend sticking to mix-ins such as nuts, chocolate chips, other cereals, seeds and some candies (I recommend small pieces or chopping if needed).

How do I store these bars?

Store at room temperature for up to 3 days in an airtight container. I do not recommend freezing these or putting them in the fridge.

Can I make these Peanut Butter and Rice Krispies Bars in advance?

You can! However, I don’t recommend making more than 1 day in advance for ultimate freshness when serving.

Sliced peanut butter rice krispies treats.
Sliced Peanut Butter and Marshmallow Rice Krispie Treats.
5 stars (2 ratings)

Peanut Butter and Rice Krispies Bars

Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
Yield: 9 Bars
These Peanut Butter and Rice Krispies Bars are the perfect sweet treat. They are nostalgic, easy to make, no-bake and made with simple ingredients.
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Ingredients
 

  • 2 cups Rice Krispie Cereal
  • 2 cups Peanut Butter Cereal
  • 12 oz large marshmallows
  • 1 cup mini marshmallows
  • 1/4 cup salted butter
  • 2 tsp vanilla extract
  • 2-3 tbsp creamy peanut butter, or peanut butter powder mixed with water

Instructions
 

  • Line a 9×9 square baking pan with parchment paper or grease with nonstick/butter
  • In a large pot, melt the salted butter on low heat
  • Once melted, add the large marshmallows and vanilla extract
  • Continuously mix until they are melted together with the butter
  • Remove from heat
  • In a large mixing bowl, pour in the cereal
  • Pour the marshmallow mixture over the cereal and mix
  • Next, fold in the mini marshmallows so that there are extra little marshmallow pockets all throughout the mixture
  • Transfer the mixture to the pan and press down firmly into an even layer
  • PRO TIP: Spray your hands or spatula with nonstick for easy transfer and pressing down of the mixture
  • Drizzle peanut butter on top of the treats
  • Allow the treats to set for 45-60 minutes at room temperature (do not put in the fridge!)
  • Slice into bars
  • Enjoy!

Nutrition

Serving: 1bar, Calories: 240kcal, Carbohydrates: 47g, Protein: 2g, Fat: 6g, Saturated Fat: 3g, Polyunsaturated Fat: 0.4g, Monounsaturated Fat: 2g, Trans Fat: 0.2g, Cholesterol: 14mg, Sodium: 153mg, Potassium: 35mg, Fiber: 1g, Sugar: 29g, Vitamin A: 720IU, Vitamin C: 6mg, Calcium: 33mg, Iron: 3mg
Author: Jessica Selensky
Course: Dessert, Snack
Cuisine: American
Keywords: easy dessert, Marshmallow and Peanut Butter, No Bake Dessert, peanut butter, Rice Krispie Treats

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