To five pounds of red raspberries (not too ripe) add five pounds of loaf sugar. Mash the whole well in a preserving kettle (to do this thoroughly use a potato masher). Add one quart of currant juice, and boil slowly until it jellies. Try a little on a plate; set it on ice, if it jellies remove from the fire, fill in small jars, cover with brandied paper and tie a thick white paper over them. Keep in a dark, dry, cool place. If you object to seeds, press the fruit through a sieve before boiling.
The International Jewish Cook Book (1919).