I have not had good luck with recipes I've been trying lately. So, I dug up this one that is SO rich. If you love the combo of peanut butter and chocolate, this is the only way to make rice krispie treats.
Peanut Butter Rice Krispie Treats
1 C Karo syrup
1 C sugar
1 C peanut butter
about 6 C Rice Krispies
1 to 1 1/2 cups semi-sweet chocolate chips
Cook Karo and sugar until sugar is dissolved. Stir in peanut butter. Take off heat and add enough Rice Krispies to absorb liquid.
Melt semi-sweet chocolate chips in microwave and spread on top.
Cool and cut.