This post may contain affiliate links, please see our privacy policy for details.

Simple. Easy. Delicious.

That is what these bars are, I have yet to meet a person who does not love K Bars bars. Any dessert with peanut butter and chocolate is a winner, but these bars are addicting! Definitely a Gerard family favorite. My mom has been making them ever since I can remember and they are the most requested dessert at parties.

The great thing about K bars is that they can be made in a flash, but are still impressive enough to bring to a party. Just bring the peanut butter, sugar, and Karo syrup to a light boil (being careful not to burn the peanut butter), mix with the corn flakes and dump on some melted chocolate. Let them harden in the fridge, cut into bars and serve!

As to why these bars are called Special K Bars I have no idea. I mean they are very special, but at least in our recipe there is no Special K cereal.  If I had to guess, originally Special K Cereal was probably used, but somewhere down the line Corn Flakes were substituted…a substitution that decided to stick around!

What could be better than Peanut Butter and Chocolate?


Cuisine: Desert
Author: Tieghan Gerard
Prep time:
Total time:
Serves: 20
  • 4 1/2 cups Corn Flakes (I fill up a 4 cup Pyrex measuring cup)
  • 1 cup Karo Syrup
  • 1 cup peanut butter, (not oily)
  • 1 cup sugar
  • 3 cups Nestle semi sweet chocolate chips
  1. Grease 9×13 inch Pyrex pan
  2. Mix Karo syrup, peanut butter and sugar all together in large saucepan
  3. Heat almost to a boil but being careful not to burn
  4. Turn off heat and mix in Corn Flakes
  5. Press into Pyrex pan
  6. Melt chocolate chips in Pyrex measuring cup, stopping to stir in middle of heating
  7. Spread chocolate on top of Corn Flake mixture
  8. Place in refrigerator to cool for 2 hours – keep refrigerated

*I recommend letting the K Bars sit out for 10-15 minutes before cutting into them, believe me this will make your life much easier!


Trust me, make these for your next party, they are sure to be a hit!

Shhhh……No one has to know how simple they are!

Add a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.


  1. I was so excited to make these. Not sure what happened… I measured…could not find Karo syrup anywhere, so Google said to use corn syrup…
    It never melted in the saucepan. It was super thick, and after waiting the 15 minutes to cut the bars, I actually broke my knife off doing so 🙁
    Help!! What do I change for next time?

    1. Hi Jaime,
      Thanks for trying this recipe, so sorry to hear you had some issues! I would highly recommend using the karo syrup next time:) I hope this helps! xx

  2. Came across this recipe in one of your cookbooks I was perusing after I woke up in the middle of the night last night. I jumped up, made a batch and then went back to sleep. When I got up this morning I had the most delicious treat to go with my coffee. Thanks T!

    1. Hey Lorena,
      Wonderful!! Love to hear that this recipe was a winner, thanks for sharing your review and making the recipe!! xTieghan

  3. Hi Tieghan! I have made these three times, once they turned out perfect in compact bars and twice the cornflake mixture crumbled away underneath the chocolate after waiting 15 minutes to cut. I am using the recipe from the cookbook which calls for honey and maple syrup instead of Karo syrup. The two crumbly bars incidents, what do you think I am doing wrong? Too much cornflakes to sauce ratio? Not incorporating the cornflakes with the sauce well enough? Needing to cook the sauce longer? Thank you for your help!

    1. Hey Kristen! When the recipe turned out perfect, what where you doing differently? Anything? How long where you cooking the peanut mix? Any details you can share on the cooking process would be helpful. Not sure what is happening! I am so sorry for the trouble!

      OH are any of your ingredients different?

  4. Hi Tieghan!

    Can you make these a few days in advance and leave them covered in the fridge? Am hoping to take to a halloween party!

    Thank you!

    1. Hi Chloe! yes, these are great for making ahead of time. The will keep for up to a week. Please let me know if you have any other questions. I hope you love this recipe! Thank you! xTieghan

  5. ブランド激安市場コピーブランドコピー,スーパーレプリカ,ブランド激安市場 女社長 激安 シャネル 財布(CHANEL),グッチ 財布 (GUCCI) 激安,ヴィトン(lv) 新作 財布 激安 ルイヴィトン財布コピー, says:

    ┻┗┛┗┛%品質保証 満足保障。
    ブランド激安市場コピーブランドコピー,スーパーレプリカ,ブランド激安市場 女社長 激安 シャネル 財布(CHANEL),グッチ 財布 (GUCCI) 激安,ヴィトン(lv) 新作 財布 激安 ルイヴィトン財布コピー,新作 ブランブランドを特別価格で提供中!ルイヴィトン財布、ルイヴィトンバッグ、ルイヴィトンベルトブランド激安市場ブランドコピー,大人気のルイヴィトン,スーパーコピー,様々な高品質ーパーコピー時計,ブルイヴィトン コピー ブランドレプリカ 激安 ブランド激安市場 ロレックス コピー スーパーコピー ルイヴィトン、シャネル、グッチ、エルメス、クロエ、ブラダ、ブルガリ ドルチェ&ガッバ―ナ、バレンシアガ、ボッテガ.ヴェネタ偽物ロレックス、ブルガリ、フランク ミュラー、シャネル、カルティエ、オメガ、IWC、ルイヴィトン、オーデマ ピゲ、ブライトリング、

  6. They are normally made with Special K cereal-hence the name. My aunt makes the best ones. Hers never get hard and brittle. Delish!

  7. I have made these for at least 20 years. You should try using 1/2 choc chips and 1/2 butterscotch chips. Something about the butterscotch/chocolate blend makes them really tasty! Love your blog–just found it today.

  8. I swear to goodness, I was JUST trying to remember what recipes I had tasted before that had peanut butter, Karo Syrup and cereal. Talk about Serendipity!! Thank you for sharing!

    1. I hope you you, your daughter, and her friends love these as much as my family does! Enjoy! Let me know what you think!

  9. I have had these and they are sinfully delicious. Just out of the refrigerator is the only way to eat them!