Put stick of butter, 1/2 cup milk and 1 1/2 c sugar in pot...stir constantly until fully melted. Bring to a rolling boil for three minutes. Add 1 tbsp vanilla and 1/2 cup peanut butter. Stir until pb is melted. Remove from heat, stir in 5 cups Hershey's cookie and creme cereal until covered. Spoon onto wax paper allow to cool until set.