Addictive peanut butter Cheerio bars

Addictive peanut butter Cheerio bars

Need something to take to a party? Or just need treats stashed in the freezer for an emergency? These 5-ingredient peanut butter Cheerio bars take mere minutes to make. And no, they aren’t just for kids!
Course Dessert
Cuisine American
Keyword Cheerio bars, chocolate, crispy treats, gluten free desserts, peanut butter Cheerio bars
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings 20
Calories 177 kcal
Author Helen


  • 2 ounces butter (about 3 tablespoons)
  • ½ cup peanut butter
  • 10 ounces marshmallows
  • 6 cups Cheerios (use 5 cups if using UK cups)
  • 7 ounces chocolate milk or dark
US Customary - Metric


  1. Line a 9 x 13 inch pan with baking paper.

  2. Melt the butter, peanut butter and marshmallows together slowly on a low heat.
  3. Combine with a wooden spoon, then stir in the Cheerios.
  4. Press the mixture into the pan with damp hands to stop the mixture sticking.
  5. Melt the chocolate in the microwave for 90 seconds, then pour over the Cheerio mixture, spreading right to the edges.
  6. Let the Cheerio bars set in a cool place for a while (the fridge is fine), then cut into bars. Store in an airtight container for up to 2 days, or freeze in Ziploc bags.

Watch how to make it!

Recipe Notes

*Note about measuring the Cheerios: If you're using UK cups (slightly larger than US cups), use just 5 cups of Cheerios (about 240 - 250 grams). Don't worry about being super precise - it won't ruin the recipe!

Remember to melt your butter, peanut butter and marshmallows ON A LOW HEAT. You don’t want it to boil up into a super chewy caramel!

If you like, you can replace ½ cup of the Cheerios with ½ cup peanuts (I use unsalted but salted may work well too!).

These peanut butter Cheerio treats stay crispy for a day or two in an airtight container, but not too much longer. If you want to keep them longer, store in the freezer in Ziploc bags.

Nutrition Facts
Addictive peanut butter Cheerio bars
Amount Per Serving
Calories 177 Calories from Fat 81
% Daily Value*
Total Fat 9g 14%
Saturated Fat 4g 20%
Cholesterol 6mg 2%
Sodium 99mg 4%
Potassium 111mg 3%
Total Carbohydrates 23g 8%
Dietary Fiber 1g 4%
Sugars 14g
Protein 3g 6%
Vitamin A 5.6%
Vitamin C 1.6%
Calcium 3.1%
Iron 14%
* Percent Daily Values are based on a 2000 calorie diet.