Russian kisel, also spelled kissel, is a thick drink with berries, similar to a smoothie. You can drink it on its own or pour it over your morning porridge. If you use tart berries such as cranberries, you don't need to add lemon juice. You can make kisel with blueberries, blackberries, raspberries, strawberries, cranberries, redcurrants or blackcurrants.
In Russia, potato (starch) flour is used.