Tulo

Special K Bars Recipe

Stacked squares of Special K bars showing the crisp cereal base and a glossy chocolate-butterscotch topping, cut into neat squares on parchment paper.

Boiling the sugar and corn syrup just until it bulges at the edges, then pulling it off the heat right away, keeps the peanut butter mixture pourable long enough to coat every flake of cereal evenly before it sets up firm but still chewable.

Prep
15 min
Cook
10 min
Total
55 min
Servings
24

Ingredients

Servings24
  • 1 cup granulated sugar
  • 1 cup light corn syrup
  • 1 cup creamy peanut butter
  • 1 teaspoon vanilla extract
  • 6 cups Special K cereal
  • 1 cup semisweet chocolate chips
  • 1 cup butterscotch chips

Nutrition per serving

Calories
242
Protein
3g
Carbs
38g
Fat
9g

Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.

Need different units or a different yield? Try our Conversion Calculator →

Instructions

  1. 1Line a 9x13-inch baking dish with parchment paper, leaving a few inches of overhang on two sides, and lightly grease the parchment.
  2. 2In a large saucepan, combine the granulated sugar and corn syrup. Cook over medium heat, stirring constantly, until the mixture comes to a full boil that bulges up around the edges of the pan, about 3 to 4 minutes.
  3. 3Remove the pan from the heat immediately and stir in the peanut butter and vanilla extract until completely smooth.
  4. 4Add the Special K cereal and fold gently with a rubber spatula until every flake is coated, working quickly before the mixture stiffens.
  5. 5Turn the mixture into the prepared pan and press it into an even layer using a greased spatula or greased hands.
  6. 6Combine the chocolate chips and butterscotch chips in a microwave-safe bowl. Melt in 30-second bursts, stirring between each, until smooth, about 1 to 2 minutes total.
  7. 7Pour the melted chocolate mixture over the cereal base and spread into an even layer with an offset spatula.
  8. 8Refrigerate uncovered for at least 30 minutes, until the chocolate layer is fully set.
  9. 9Lift the block out of the pan using the parchment overhang and cut into 24 bars with a sharp knife.

Tips & variations

  • Spray the measuring cup with cooking spray before measuring corn syrup so it pours out cleanly instead of sticking to the sides.
  • Use a no-stir, shelf-stable peanut butter rather than a natural oily one; natural peanut butter can make the base greasy and prevent it from firming up.
  • Swap the butterscotch chips for white chocolate chips for a sweeter, less butterscotch-forward topping.
  • For a peanut butter cup flavor, stir 2 tablespoons of extra peanut butter into the melted chocolate topping before spreading it on.
  • Underboiling the sugar and corn syrup by even a minute leaves the bars soft and hard to cut cleanly; the mixture should visibly bulge around the pan's edges before it comes off the heat.

Storage & reheating

Store bars in a single layer between sheets of parchment in an airtight container at room temperature for up to 5 days, or refrigerate for up to 2 weeks if the kitchen runs warm. Freeze for up to 2 months, layered with parchment in a freezer bag; thaw at room temperature for about 20 minutes before serving.

Tips from the Tulo kitchen

  • Grease your hands with a little butter or cooking spray before pressing the cereal mixture into the pan; it keeps the mixture from sticking to your fingers and compacts it more evenly than a spatula alone.
  • Cut the bars while the chocolate topping is just barely set rather than fully hardened, a cold knife will crack a fully set chocolate layer instead of slicing through it cleanly.

FAQ

Can I use Rice Krispies instead of Special K?

Yes, though the texture changes. Special K flakes give a slightly denser, more compact bar, while puffed rice cereal makes a lighter, airier one closer to a classic Rice Krispie treat.

Why are my Special K bars too hard?

The sugar and corn syrup were likely boiled too long or at too high a heat. Pull the mixture off the stove as soon as it bulges up around the edges of the pan, not after a full rolling boil.

Can I skip the chocolate topping?

Yes, the bars hold together and taste fine without it, though the topping adds most of the sweetness and a cleaner cut edge. Without it, press the bars a little more firmly since there's no top layer holding in stray flakes.

Why won't my bars stick together?

This usually means the syrup mixture cooled too much before the cereal was added, or the bars weren't pressed firmly enough while still warm. Work quickly and press hard within a minute or two of mixing in the cereal.