Prep an 8x8 (or 9x9) pan by spraying with non stick spray. Set aside.
Place a large pot over medium-low heat. Add the Karo Syrup and sugar.
1 cup light Karo Syrup, 1 cup sugar
Let that melt together but do not let it boil!! Pro Tip: if this mixture boils it will turn your bars into rock hard treats!!
Stir in the peanut butter until it melts in completely.
1 cup (heaping) creamy peanut butter
Now stir in 6 cups of puffed rice cereal. It may be hard to stir. Pro Tip: Make sure you are stirring all the way to the bottom to get all the peanut buttery deliciousness!
6 cups puffed rice cereal
Pour the mixture into your prepared pan. Press it into an even layer all the way to the corners of the pan.Pro Tip: Wet your hands before pressing the sticky treats, this will prevent them from sticking to your hands.
Let the bars cool and set for about an hour before cutting.
Cutting
You can cut them one by one out of the pan.OR You can run a knife around the edge of the pan and then turn it out. Cut into squares and then store in an air tight container for up to week.
These are a very sweet treat, cut them into 16 squares. (4x4 in your pan)
Freezing
You can also freeze these bars in a freezer baggie. They will be good for up to 3 months. Thaw at room temp before serving.
Notes
SCOTCHEROOS: if you love these Peanut Butter Rice Krispie you may also like this recipe for Scotcheroos. It is a similar rice cereal treat, but it is topped with a chocolate and butterscotch frosting.