In a saucepan, combine syrup, sugar & butter and bring them to a rolling boil stirring constantly. Boil hard for 2 minutes. Remove from heat & add vanilla. Pour over cereal. Turn mixture onto waxed paper and allow to dry.
Then you can sprinkle nuts, coconut, and choc. chips, M& M’s or whatever to it. If you’re adding something choc. make sure it’s cooled first. At Christmas, I sprinkle the Christmas sprinkles over it to make it more festive.