Special K Bars

By Kate Shungu ● Updated June 27, 2023

Special K Bars are the ultimate no-bake dessert! You can make them in 15 minutes, and fans of peanut butter and chocolate will LOVE them!

special k bars on a green glass serving platter
woman scooping pistachio salad into a parfait dish, with colorful vintage bowls in the background.
Kate’s Recipe Rundown

These No-Bake Special K Bars will FLY off the platter at your next get-together. The combination of peanut butter and chocolate, plus the crunch from Special K cereal make them irresistible. 

They’re ideal for a potluck or a picnic, especially when the weather is warm. They require no baking in the oven, and just about 15 minutes to assemble.

My family makes these bars at Christmas time (just like these Toll House Cookie Bars and Grandma’s Cocoa Drops), but I know a lot of people make them in the summer. So whether you make these in December or in July, they are a popular dessert any time of the year!

Here are a few of my top tips for making them:

  1. Line the pan with parchment paper. It makes cutting them MUCH easier.
  2. After the corn syrup and sugar to a boil, take the pan off the heat immediately. This will prevent the bars from becoming too hard when they cool.
  3. Do not use natural peanut butter for this. Use that kind that you don’t have to stir.
  4. Spray a plastic baggie with cooking spray, put your hand inside, and use that to spread the peanut butter mixture into the pan. It won’t stick and you can do it quickly!
  5. Take care not to overheat the chocolate chips. Heat them just until melted. If they get too hot, they will form a white film on top when the chocolate hardens. It’s harmless but not very pretty!
Enjoy! Kate
Special K Bars on a wooden platter.

Some of the links featured in this post are affiliate links to products I enjoy and recommend, which means I may earn a small commission if you purchase.

Ingredients

ingredients for Special K bars on a white table

You’ll need 7 ingredients for these bars:

  • Sugar and corn syrup combine to make them sweet and chewy.
  • You can use either crunchy or smooth peanut butter. Do not use natural peanut butter. I used Skippy; JIF also works well.
  • Special K cereal adds crunch! You can substitute corn flakes or Rice Krispies, if you’d like.
  • Vanilla extract enhances the chocolate and peanut butter flavors.
  • Semi-sweet chocolate chips combine with butterscotch chips to make the topping. You’ll need one cup of each. The extra butterscotch chips can go in this easy butterscotch cake!

How to make Special K Bars (no-bake)

Line a 13×9-inch baking dish with parchment paper. The bars can be difficult to cut if they’re in the pan. The parchment will allow you to remove the bars from the pan before cutting, which makes cutting them SO much easier.

parchment paper in a 13x9 inch pan

Place the corn syrup and sugar in a saucepan, and cook on the stovetop just until it reaches a boil. Do not allow it to boil too long, which can cause the bars to become too hard later.

corn syrup and sugar in a saucepan with a whisk

Then, stir in the peanut butter and vanilla.

peanut butter mixture in a saucepan with a whisk

Next, pour the Special K into a large heat safe bowl (use the largest bowl in your kitchen!) and pour the peanut butter mixture on top. Stir it gently to avoid crushing the cereal.

special K bar mixture in a glass bowl with a spatula

Quickly transfer the cereal mixture to the parchment-lined pan. Be careful—the mixture will be hot. Spread the mixture into an even layer.

I spray a sandwich-sized zip-top bag with cooking spray, and place my hand inside to press the mixture down evenly.

hand inside a plastic bag, pressing on special k bar mixture

Place the chocolate chips and butterscotch chips in a microwave-safe bowl, and microwave in 30 second intervals. Stir the chips each time to ensure even heat distribution. You will notice that the chips will melt as you stir them.

Important Tip: do not microwave the chips longer than necessary—just enough to melt them after stirring. Heating the chips too much can damage the chocolate and you’ll get an white film on top of the bars when they cool. The film is perfectly fine to eat, but not as attractive.

Pour the chocolate mixture over the peanut butter mixture, and spread it evenly using an offset spatula.

spatula spreading chocolate on top of bars

Let the Special K Bars cool on the countertop until the chocolate hardens (about 1 hour, or longer if your kitchen is warm).

You could also place them in the refrigerator to speed along this process. Do not cut them before the chocolate hardens, or the chocolate will get smeared everywhere.

Finally, lift the parchment paper out of the pan, and cut the bars with a sharp knife. I find that a large kitchen knife is best for this. The only thing left to do is dig in!

Frequently Asked Questions

Are Special K Bars and scotcheroos the same thing?

There is one difference between Special K Bars and scotcheroos: the cereal. Special K Bars use Special K cereal, and scotcheroos call for Rice Krispies.

What’s a good substitute for butterscotch chips?

If you don’t have butterscotch chips, replace them with more chocolate chips (or peanut butter chips!). I personally love the flavor that the butterscotch chips add, but the bars are still delicious with just chocolate chips.

I’m having a hard time pressing down the peanut butter layer into an even layer. What can I do?

Your hands are your best tools! Place your hand inside a plastic baggie (spray the bag first lightly with cooking spray) and press down on the peanut butter layer to put it into one even layer. I find this is much easier than using a spatula, and the mixture won’t stick to your hand thanks to the plastic bag.

I need to eat one of these ASAP! How can I speed up the cooling process?

Place the pan into the refrigerator for 30 minutes, then cut the bars into squares.

Why are my Special K Bars hard?

Special K Bars can get hard if the sugar mixture reaches a higher temperature than is necessary. Heat the mixture only until it starts boiling, then take off the heat.

Do Special K Bars need to be refrigerated?

They do not need to be refrigerated. Store them in a covered container at room temperature. You can also store them in the fridge, though they will be chewier.

special k bars stacked on a green glass cookie platter.

How to store Special K Bars

Special K Bars should be placed in a covered container and stored at room temperature. They can also be stored in the refrigerator, though this makes them chewier.

Place a layer of wax paper, parchment paper, or plastic wrap between the layers of bars, if you are stacking them.

Special K Bars are good for up to two weeks. They will start to get a little harder after one week or so. You can also freeze them for up to two months.

special k bars cut into squares on a circular wooden board.

More no-bake cookies recipes

When you don’t want to turn on the oven, no-bake cookies are the way to go!

Grandma’s Rum Balls are one of my favorite no-bake cookies—you can definitely taste the rum!

Boiled Cookies have a similar flavor to Special K Bars—they’re loaded with peanut butter and chocolate, and also sport the addition of marshmallows, coconut, and walnuts. Kids LOVE them.

Corn Flake Candy is also very similar in flavor to Special K Bars, but without the chocolate on top. It’s dropped by the tablespoon-full into clusters, and can also be dyed green and shaped into Christmas wreaths.

Old Fashioned Peanut Butter Fudge is a peanut butter lover’s DREAM! Just five ingredients, too.

These aren’t technically cookies, but Marshmallow Popcorn Balls are such a fun snack. No baking required!

📖 Recipe

special k bars on a green glass serving platter

Special K Bars (No-Bake)

Published by Kate
If you like chocolate and peanut butter, then you will love these easy Special K Bars. There's no baking required!
4.84 from 24 votes
Prep Time 15 minutes
Cook Time 0 minutes
Total Time 15 minutes
Course Dessert
Cuisine American
Servings 24 bars
Calories 262 kcal

Ingredients
  

  • 4 cups Special K cereal
  • 1 cup light corn syrup
  • 1 cup granulated sugar
  • cups peanut butter (creamy or crunchy, but NOT natural peanut butter)
  • 1 teaspoon vanilla
  • 1 cup semi-sweet chocolate chips
  • 1 cup butterscotch chips

Instructions
 

  • Line a 13×9 inch baking dish with parchment paper.
  • Measure the Special K cereal into a large bowl.
    4 cups Special K cereal
  • Place the corn syrup and granulated sugar in a small saucepan over medium heat. Cook, whisking occasionally, until the mixture JUST reaches a boil (no longer). Remove from the heat. Stir in the peanut butter and vanilla.
    1 cup light corn syrup, 1 cup granulated sugar, 1½ cups peanut butter, 1 teaspoon vanilla
  • Pour the peanut butter mixture over the Special K and stir gently to combine, working quickly.
  • Transfer the mixture to the baking dish lined with parchment paper. Spread the mixture evenly in the pan (be careful—it’ll be hot). I use my hand inside a sandwich-sized zip-top bag (spray the bag first with cooking spray) to spread the mixture into an even layer.
  • Place the chocolate chips and butterscotch chips in a microwave-safe bowl. Microwave in 30 second intervals, stirring in between, just until melted.
    1 cup semi-sweet chocolate chips, 1 cup butterscotch chips
  • Pour the chocolate mixture over the top of the bars. Use a spatula or offset spatula to spread the chocolate evenly.
  • Let cool for at least 1 hour, or until the chocolate has hardened, before cutting. Alternatively, place the bars in the refrigerator for 30 minutes to cool.
  • To cut into bars, lift the parchment paper out of the pan like a sling. Place on a large cutting board and cut into 24 bars with a sharp knife.

Video

Notes

Don’t have butterscotch chips? You can replace them with more chocolate chips.
Take care not to overheat the chocolate/butterscotch mixture. If it gets too hot, it’ll form a white film on it when cool (which is fine to eat, just not attractive). Heat the chips only until melted when stirred. 
Use a sharp knife to cut these bars—they are sticky. I highly recommend using the parchment paper as called for in the recipe. They are easier to cut out of the pan. 
You can replace the Special K with an equal amount of corn flakes or Rice Krispies
Speed up the cooling process by putting the bars in the refrigerator for 30 minutes. 
If your Special K Bars are hard or crumbly, the corn syrup mixture was likely cooked too long. Next time, take the mixture off the heat right when it starts boiling. 
Store any leftovers at room temperature. They can also be frozen for up to two months.

Nutrition

Serving: 1barCalories: 262kcalCarbohydrates: 39gProtein: 5gFat: 11gSaturated Fat: 3gCholesterol: 1mgSodium: 150mgPotassium: 170mgFiber: 2gSugar: 31gVitamin A: 94IUVitamin C: 1mgCalcium: 14mgIron: 2mg
Keyword Christmas cookies
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4.84 from 24 votes (23 ratings without comment)

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