Kefir and strawberry jelly

Crush (or purée) strawberries with sugar. Mix with kefir and add sugar to taste. Swell and melt the gelatine. Kefir and gelatine have to be at a similar temperature or the jelly will be lumpy. When the gelatine is hot and kefir is cold, a part of the kefir should be poured into the gelatine, stirring continuously, and then the mixture into the kefir and strawberry mixture while stirring continuously. Let set.