Denise found this recipe posted on Vegsource but I don't know who to give credit to. As far as I know it was posted by Lex so, that's the person that gets the credit altho whomever devised this recipe should be awarded the Nobel Prize for Cooking.
Ingredients
Combine the corn syrup, sugar, and p.b. in a dutch oven on the stove or in a really big microwaveable bowl. Heat gently until the sugar is completely dissolved, stirring a lot! It will probably need to come to a very gentle boil to do this. Remove from heat, and immediately stir in the rice krispies. Spread into a greased 9x13 or other pan, and chill in the fridge until firm. Cut into squares, and voila!
Here's the trick to making these hold together really well: When you put it into the pan, butter your fingers and press the mixture firmly into the pan.
May be topped with melted chocolate chips, in little drizzles over the cut squares (pretty) or just a flat layer over the whole pan, or you can sub some choc. chips/candy for a teensy bit of the cereal. I like'em best plain, though.