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    Home » Desserts » No Bake Reese's Peanut Butter Cereal Bars

    No Bake Reese's Peanut Butter Cereal Bars

    Published: April 4, 2018 · Jill Baird · 5 Comments

    Marshmallow and peanut butter cereal bars in a white baking dish

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    ooey gooey marshmallow and peanut butte caramel in reeses cereal puffs

    These no-bake Reese's Peanut Butter Cereal Bars are an ooey-gooey, peanut buttery delight.  Topped with Reese's Peanut Butter Cups and a white chocolate drizzle, these cereal bars are going to become a new favorite!

    Jump to:
    • Reese’s Puffs Cereal Bars
    • Reese's Puffs Recipe Video
    • Ingredients in Reese’s Peanut Butter Cereal Bars
    • How to Make Reese’s Puffs Cereal Bars
    • Tips and Tricks
    • Storing
    • Reese's Peanut Butter Cereal Bars
    • More No-Bake Cereal Treats Like This Reese's Puffs Recipe

    Reese’s Puffs Cereal Bars

    These no-bake Reese’s Peanut Butter Cereal Bars are a serious no-brainer for any caramel, marshmallow, and peanut butter lover out there.  It is such a crowd-pleaser, and comes together super quickly. Who doesn’t love a chewy, crunchy, caramel no-bake treat - especially one that is finished with a white chocolate drizzle?  Come to Mama!  

    If you don’t have Reese’s Puffs around, there are plenty of other great substitutions.  Pop’s, Cheerios or Chex would make great cereal bars. Top them with Rolos, Snickers, Twix or any of your other favorite candy bars.  In fact, this would be a perfect way to use up the candy left over from a holiday!

    For fans of Reese’s Puffs dessert recipes like this, check out our post devoted to all of our Best No-Bake Cookies and Cookie Bars recipes, or just head straight to these s'mores-based No-Bake Cereal Bars.

    Mixing Reese's Peanut Butter Cereal Bars in a pot.

    Reese's Puffs Recipe Video

    Ingredients in Reese’s Peanut Butter Cereal Bars

    • Butter - make sure to use unsalted butter for this recipe.
    • Karo Syrup - this corn syrup helps ensure that your caramel doesn’t crystallize.
    • Sugar - the cooked sugar helps to stabilize this no-bake treat, so be sure to boil your mixture for 1 minute.
    • Peanut Butter - any brand of creamy peanut butter will work great.
    • Mini Marshmallows - the mini-sized marshmallows will be much easier to melt in this recipe.
    • Reese’s Puffs Cereal - if you don’t have this type on hand, you can substitute another cereal with larger crunchy pieces, like Peanut Butter Cap’n Crunch, Cocoa Puffs, Pop’s, Cheerios, Puffins or Chex.  
    • White Chocolate - we used the wafers but you can also use white chocolate baking chips.
    • Reese’s Cups - it’s helpful to chop these up ahead of time and have them ready to sprinkle over the top while the mixture is still warm.  You could also substitute another chopped candy bar, or any flavor of chocolate chips.
    A baking dish full of gooey cereal bars, topped with melted chocolate and peanut butter cups.

    How to Make Reese’s Puffs Cereal Bars

    1. Melt white chocolate.  Put your white chocolate into a microwave safe bowl and microwave for about 20-30 seconds.  Stir, then microwave again for another 20-30 seconds.  Continue to microwave for 20-30 seconds at a time, stirring in between, until your chocolate is fully melted.  Set aside.  
    2. Make the cereal mixture.  In a large saucepan (preferably nonstick), melt butter. Add the Karo syrup and sugar and stir until the mixture comes to a boil.  Boil for 1 minute, then reduce the heat to low.  Add the peanut butter and marshmallows and stir.  Keep stirring until the marshmallows are melted.  Remove from the heat and stir in the Reese's Puffs Cereal until well combined.
    3. Spread mixture into prepared baking dish.  Spray a 9"x 13" pan with non-stick cooking spray.  Pour cereal mixture into your lightly greased baking dish and press the mixture evenly with a spatula.
    4. Top with peanut butter cups and melted chocolate.  Sprinkle the chopped Reese's Peanut Butter Cups on the cereal bars and then drizzle with the melted white chocolate.
    5. Let cool.  Let sit for at least 20 minutes until the Reese's Puffs Cereal bars are cooled and the chocolate on top has set.  (Note: you can speed up this process by putting them in the fridge too)  
    6. Serve.  Once you are ready to serve, cut into 3" squares and enjoy!
    Mixing Reese's puffs recipes full of peanut butter and marshmallows.

    Tips and Tricks

    • Be sure to have all the ingredients measured and ready to go.  This recipe goes quickly and requires you to stir the entire time.  This includes having your white chocolate melted and Reese’s Cups pre-chopped.
    • Don’t forget to spray your baking dish with non-stick spray!
    • Let the cereal bars cool for at least 20 minutes before you serve them or they will fall apart.  If you want to speed up the process, throw them into the fridge for about 10 minutes.
    • You want to boil your butter and sugar mixture for 1 minute - no more and no less!  If you boil too much, the sugar will cook too far and your cereal bar will be too hard when it cools.  If you don’t boil enough, they will fall apart easily.
    • Once you have poured out your mixture into your baking dish, place a sheet of parchment paper over the top for a no-mess way to spread it out evenly.

    Storing

    • Room Temperature: store in an airtight container at room temperature or up to 1 week.
    • Freezer: you may freeze your cereal bars as long as they are wrapped well in aluminum foil and stored in freezer bags.  You can store frozen for up to 1 month.
    Marshmallow and peanut butter cereal bars in a white baking dish
    Print

    Reese's Peanut Butter Cereal Bars

    These amazing Reese's Peanut Butter Cereal Bars are what dreams are made of! Ooey gooey peanut butter goodness in a fluffy marshmallow cereal bite, complete with Reese's Peanut Butter Cup chunks and a white chocolate drizzle.
    Course Dessert
    Cuisine American
    Prep Time 20 minutes
    Total Time 20 minutes
    Servings 15 people
    Calories 398kcal
    Author The Carefree Kitchen

    Ingredients

    • 6 oz White Chocolate melted
    • ½ cup Butter
    • ½ cup Karo Syrup
    • ½ cup Sugar
    • ½ cup Peanut Butter creamy
    • 12 oz Mini Marshmallows
    • 12 cups Reese's Puffs Cereal
    • 12 oz Reese's Peanut Butter Cups chopped

    Instructions

    • Spray a 9"x 13" pan with non-stick cooking spray and set aside. 
    • Put your white chocolate into a microwave safe bowl and microwave for about 20-30 seconds. Stir, then microwave again for another 20-30 seconds. Continue to microwave for 20-30 seconds at a time, stirring in between, until your chocolate is fully melted. Set aside.
    • In a large and deep non-stick pot, melt the butter. 
    • Add the Karo syrup and sugar and stir until the mixture comes to a boil.  Boil for 1 minute, then reduce the heat to low and mix in the peanut butter and marshmallows.  Keep stirring until the mixture comes to a boil again.
    • Remove from the heat and stir in the Reese's Puffs Cereal until well combined.
    • Pour cereal mixture into your prepared baking dish and spread evenly with a spatula.
    • Sprinkle the chopped Reese's Peanut Butter Cups on the cereal bars and then drizzle with the melted white chocolate.
    • Let sit for at least 20 minutes until the Reese's Puffs Cereal bars are cooled and the chocolate on top has set.  (Note: you can speed up this process by putting them in the fridge too) 
    • Once you are ready to serve, cut into 3" squares and enjoy!

    Notes

    *To make these gluten-free, just substitute your favorite gluten-free cereal and be sure to check the label of the marshmallows that you use.  Everything else is already gluten-free!

    Nutrition

    Calories: 398kcal | Carbohydrates: 68g | Protein: 6g | Fat: 14g | Saturated Fat: 7g | Cholesterol: 18mg | Sodium: 321mg | Potassium: 269mg | Fiber: 6g | Sugar: 41g | Vitamin A: 995IU | Vitamin C: 0.1mg | Calcium: 48mg | Iron: 8.9mg

    More No-Bake Cereal Treats Like This Reese's Puffs Recipe

    • No-Bake Peanut Butter Smore's Bars
    • Best Chocolate Rice Krispies Treats
    • Peanut Butter Chocolate No Bake Cookies
    • Red, White and Blue Rice Krispies Treats
    • Fruity Pebble Rice Krispie Treats
    • Peanut Butter No Bake Cookies
    • Coconut Peanut Butter No Bake Cookies
    • Nutella No Bake Cookies
    • Chia Oatmeal Energy Balls
    • Nutella Balls
    • More Dessert Recipes
    • More No-Bake Recipes

    If you’ve tried this recipe, please rate it and leave a comment on this post. I love hearing feedback from you helps me and other readers too! If you love Pinterest,  feel free to leave a comment and photo there too.  Also, if you like to share, use the hashtag #thecarefreekitchen on Instagram and tag me @thecarefreekitchen so I can find you and give your post some love. You can also find me on Facebook at The Carefree Kitchen. Thank you!!

    Reese's Peanut Butter Cereal Bars are the best ooey-gooey, quick and easy treat. Topped with a drizzle of white chocolate and peanut butter cups, these cereal bars are packed full of peanut butter flavor and sure to become a new favorite.

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