Mom’s Peanut Butter Cereal Bars with {the best} Chocolate Frosting

Peanut Butter Cereal Bars with {the best} Chocolate Frosting -

I know most people have a variation of cereal bars in their own recipe box, but I get asked for this recipe so often that I felt it was obviously still worth sharing. These are the only Peanut Butter Cereal Bars I’ve ever known, a recipe from Mom. And they’re one of my husband’s favorite homemade treats.

Peanut Butter Cereal Bars with {the best} Chocolate Frosting -

The bars are super easy to put together, with a minimum of ingredients. They set up perfectly every time, and are gooey and chewy, with just the right amount of peanut butter and chocolate. Better than any candy bar, guaranteed.

Many people say the chocolate frosting on these bars is the best they’ve ever tasted on peanut butter cereal bars, and they always want to know specifically how I make it.

peanut butter cereal bars

This is the only deviation I make from Mom’s original recipe, which calls only for melted chocolate chips in the frosting. My secret is that I simply add a bit of peanut butter. And I like to use Guittard semi-sweet chocolate chips…I think they have a deeper darker quality than most semi-sweet chocolate chips.


These peanut butter cereal bars are easy enough to put together, in fact, I made them while we were camping with my parents this past weekend at one of South Dakota’s beautiful state parks. I thought it would be the perfect way to celebrate Blake’s birthday around the campfire. Except that I forgot to bring the chocolate chips. And the party plates and napkins. And the birthday candles. Sheesh!

Mom & I drained our chocolate supply for s’mores and I used Hershey’s bars in lieu of the chocolate chips. The frosting was softer and sweeter, but definitely still delicious.

And because my aunt and uncle were so thoughtful (thanks, Ray & June!), there were even candles and ice cream!

We had such a great weekend camping and catching up with family and friends. There were games of Scrabble played in our pajamas, card games around the outdoor picnic table throughout the day, boating under the big blue sunshiney sky, and plenty of good eating. We baked our favorite Buffalo Chicken Dip in a cast iron skillet over the campfire, and passed around bowls of freshly popped corn. My uncle Elroy makes the best popcorn, shaking the popper over the open flame. It’s buttery, perfectly salted, and has just the right amount of big open starry South Dakota sky.

Peanut Butter Cereal Bars with {the best} Chocolate Frosting -

Do you have a favorite cereal bar recipe that everyone asks you for? If not, give these a try. And when you take them to your next gathering, be sure to have a copy of the recipe with you, because I’m betting you’ll be asked for it.

Mom's Peanut Butter Cereal Bars with {the best} Chocolate Frosting

Yield: 24 bars


for the peanut butter cereal bars:
6 c. corn flakes cereal
1 c. sugar
1/2 c. unsalted butter
1 c. light corn syrup
1 c. creamy peanut butter
for the chocolate frosting:
12 oz. semi-sweet chocolate chips (I like to use Guittard brand)
1/4 c. creamy peanut butter


for the peanut butter cereal bars:

Spread cereal evenly in a 9” x 13” pan and set aside.

In a medium saucepan over medium/medium-high heat, combine sugar, butter, and corn syrup. Bring to a boil. Let boil for 1 minute. Remove from heat and stir in peanut butter until silky smooth. Pour hot mixture over cereal and gently fold to incorporate evenly. Using a spatula, press down on the coated cereal, firmly but gently, until even. Let cool.

for the chocolate frosting:

In a small saucepan over low heat, combine the chocolate chips and peanut butter. Heat the chocolate as gently as possible, stirring regularly, and taking care to not let the chocolate scorch. When the chips are almost melted, remove pan from heat and stir until completely smooth. Pour warm frosting over bars and spread evenly. It’s really hard to not cut out a piece and eat it immediately, but if you let the frosting cool completely, it will set up and cut very nicely.

Adapted just slightly (I add peanut butter to my frosting) from Mom’s recipe box.


You might like these other bars recipes, too!

We participate in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites. See our disclosure policy for more info.