Directions:
Slice thin, skin and all, one grapefruit, one orange, one lemon. Add to this three times its measure of water and allow to stand overnight. Cook for ten minutes the next morning and then allow to stand until the next morning, when finish by adding as much sugar as there is liquid and boiling slowly until done, or until it jellies. The time commonly given is two hours, but a half hour less than this is ample.