I will be wondering if you like it or not.
In Russia, kissel is not jelly, but:
Fruit and berry sweet kissel (in some sources: “red kissel”) - a sweet dessert jelly-like or liquid third dish made from fresh and dried fruits and berries, fruit and berry juices, syrups, jam, with the addition of potato or corn starch, sugar or honey.
If you are interested, then I can write a recipe for its preparation.
It is drunk both hot and cold.