Beach Plum Jelly

Collect beach plums that are red and green (not fully ripe) Wash..Place washed beach plums in large pot, barely covering them with water. Cook on low heat until fruit is soft and liquid is somewhat reduced. Strain, without squeezing, using a jelly bag. Boil six cups of this jelly stock for 5 minutes and then add six cups of sugar. Stir only until sugar is dissolved. Boil vigorously until a small quantity jells on a saucer. Skin off any sugar scum. Pour into hot sterilized jars and seal. Never, oh never, make this jelly on any but a clear, fine day. No pectin needed for this recipe. Unfortunately, the recipe does not say how many beach plums needed. I think you may have to experiment here. Get as many beach plums as you can. You may have to 1/2 this recipe, because it is becoming hard to find these great fruits. I would recommend this recipe for experienced jelly and jam makers only. However, if you are willing to learn by trial and error, this one is for you too!