Peanut Butter Chex Bars

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5 from 2 votes
Prep: 10 minutes
Total: 10 minutes

Peanut butter cereal bars are favorite treat, not just for the kids but for everyone. This super quick and easy version is astonishingly good and is so much better than processed packaged ones.

Rack with cut squares of Peanut Butter Chex bars.

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These peanut butter cereal bars are made with chex mix and are filled with tons of peanut butter goodness and there is no baking required. Therefore, they are a fun project to make with kids.

Who invented cereal? Find out more here.

  • Quick Snack: These bars are really quick to make, just melt, press and cool.
  • Easy Ingredients: All easy pantry ingredients.
  • Family Friendly: These bars are so colorful and packed with ingredients your family will love.
  • Adaptable: An easy treat to adapt to your families taste.
  • Makes Great Leftovers: Leftovers? Doubtful!
Close up of a peanut butter chex bar with chocolate drizzle.

What You Need to Make Peanut Butter Cereal Bars

Ingredients

  • butter
  • creamy peanut butter
  • mini marshmallows
  • Corn Chex
  • mini pretzels
  • M&Ms
  • chocolate chips

Equipment

How to Make Peanut Butter Chex Bars – Step by Step

Butter melting in a pan, next picture marshmallows added and finally the cereal added.
  • Melt: First, melt the butter in a large non-stick pot, then add the peanut butter and mini marshmallows. Next, stir until melted and remove from heat.
  • Mix: Second, add the Chex and mini pretzels and stir until coated.
  • Spread: Third, spread the mixture in a 9×13 baking dish and next, top with M&Ms. Finally, press the mixture into the pan until solid. 
  • Cool: Allow to cool completely, then cut into 12 bars. Lastly, drizzle the chocolate over the top of each bar.
mixture spread out in a pan with candy topping added.

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Common Questions About Snack Bars

HOW DO I STORE PEANUT BUTTER CEREAL BARS

Store in an airtight container for up to five days in a cool dark place.

CAN I SUBSTITUTE SUNFLOWER OR SOY BUTTER?

Yes, wither of these can be used as a 1:1 replacement for peanut butter.

DOUBLED OR HALVED?

Absolutely, just adjust your ingredients accordingly.

RECIPE BE FROZEN?

Of course, try wrapping them in wax paper or even parchment and place in an airtight container for up to two months.

Final product of the peanut butter checks bar on a plate.

Expert Tips for Making Bars

  • Different Candy: Try using Reese’s Pieces or any other candy that your family may enjoy.
  • Gluten Free: Corn Chex are gluten free so safe to have. Here is a great gluten free pretzel.
  • Spreading Tip: Use a cooking spray on your hands when you are pressing your bars down. Greased parchment paper under your barys will also help make them easier to depan.
  • Alternate cooking method tip: Slow cookers or Instant Pots can be used to make this recipe as well.
  • Chips: Make with different chips. For example: peanut butter, butterscotch, caramel or white chocolate.

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Rack with cut squares of Peanut Butter Chex bars.

Peanut Butter Chex Bars

5 from 2 votes
Peanut butter cereal bars are favorite treat, not just for the kids but for everyone. This super quick and easy version is astonishingly good and is so much better than processed packaged ones.
Prep Time : 10 minutes
Total Time : 10 minutes
Servings: 12 servings
Course: Dessert

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Ingredients
  

  • ½ cup butter
  • cup creamy peanut butter
  • 10 ounces mini marshmallows, 1 package
  • 6 cups corn Chex
  • 1 cup mini pretzels, crushed
  • ½ cup M&Ms
  • ½ cup chocolate chips, melted

Instructions
 

  • Melt the butter in a large stock pot, then add the peanut butter and mini marshmallows. Stir until melted and remove from heat.
  • Add the Chex and mini pretzels and stir until coated.
  • Spread the mixture in a 9×13 baking dish. Top with M&Ms. Press the mixture into the pan until solid.
  • Allow to cool completely, then cut into 12 bars. Drizzle the chocolate over the top of each bar and rest to harden before serving.
Helpful Tips for All RecipesThese quick tips will help you get perfect results every time.

  • Scale the recipe: Simply adjust the serving size in the recipe card and the ingredients will update automatically.
  • Make your own All Purpose Seasoning: When a recipe calls for All Purpose Seasoning, you can use my homemade All Purpose Seasoning recipe or substitute salt and pepper to taste.
  • Meat doneness: I always use a meat thermometer to test for doneness when cooking meat.
  • Use unsalted butter: I use unsalted butter so I can control the salt level in the recipe.
  • Preheat the oven: Unless otherwise noted, always preheat your oven before baking.

For more helpful information about this recipe, such as variations, substitutions and other pro-tips, check out the blog post.

Nutrition

Calories: 349kcalCarbohydrates: 50gProtein: 5gFat: 16gSaturated Fat: 8gTrans Fat: 1gCholesterol: 23mgSodium: 333mgPotassium: 89mgFiber: 2gSugar: 26gVitamin A: 773IUVitamin C: 5mgCalcium: 76mgIron: 5mg
The nutritional information provided are estimates. It is recommended that you verify this information with your own trusted resource.
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