While water kefir makes a delicious probiotic beverage, it also makes a great base for gelatin dessert. Gelatin is actually considered a health food in many circles. The probiotic power and delicious flavor of water kefir mixed with fruit gives you a gelatin dessert you can happily serve your whole family.
Combine water kefir and grape juice. Pour half of this mixture into a small sauce pan. Sprinkle the gelatin powder over the top and put over a very low burner. Just barely warm the mixture in order to dissolve the gelatin powder. Do not get this mixture very warm or hot in any way as that will destroy the beneficial probiotics and enzymes of the water kefir.
Meanwhile, slice the plums and place in the bottom of a large glass bowl or baking dish.
Once the gelatin begins to dissolve take it off the burner and whisk well, being sure to scrape the bottom and sides of the pan for any gelatin powder that is sticking to the pan.
Once the gelatin is completely dissolved, combine it with the remaining kefir-juice liquid. Pour this mixture over the sliced plums, move them around to evenly distribute, then place immediately in the refrigerator to chill for at least 4 to 8 hours.
Serve cold with whipped cream, whipped coconut cream, or on its own.