Buttermilk Syrup (Heap Family Recipe)

1 cup sugar

1/2 cup buttermilk

1 cube butter *

1/2 t baking soda

1 T corn syrup

1 t vanilla

* I don't use the whole cube, but you can, i think it makes it too buttery

Mix all but the vanilla, Boil 2-3 mins then add vanilla, Makes 1-1 1/2 cups