Bring the water to the boil, add the salt and rice mix, simmer (uncovered) over a low heat for approx. 10 mins., cover and leave to fluff up on the switched-off hob for approx. 5 mins., remove the pan from the heat.
Heat the oil in a pan. Sauté the shallot, add the gooseberries and sauté briefly. Add the sugar, vinegar and water, season, cover and simmer for approx. 5 mins.
Mix the kohlrabi, fish, dill and gooseberries into the rice, plate up.