Boil down any desired quantity of sweet cider in your preserving kettle to 2/3 the original quantity. Pare, core and slice as many wine apples as you wish to use. Boil slowly, stirring often with a silver or wooden spoon. Spice with stick cinnamon and cloves, and sweeten to taste. Boil from four to five hours; take from the fire, pour all together into a large crock. Cover and let it stand overnight, then return it to the preserving kettle and boil down, stirring all the while until it is the consistency of mush, and of a dark brown color.