Preheat oven to 350 degrees.
Mix melted butter, sugars, vanilla extract, peanut butter and eggs. Add flour and baking soda, mix. Stir in cereal and oats.
Drop by teaspoonfuls (or scoops) onto an ungreased cookie sheet.
Bake for 10 - 15 minutes or until lightly browned on edges. Cool on pan for 5 minutes. Remove to cooling rack to cool completely.
Add an unwrapped Hershey's kiss to cookies when you remove from the oven, if desired.