
Start by finely slicing the cucumbers, either by hand with a good knife, or carefully using a mandolin or a food processor with a slicing disc.
Put the sliced cucumber into a colander, sprinkle with salt and leave the colander over a bowl. The salt will bring some of the liquid out of the cucumber, which will also turn slightly darker in colour.
Drain well (using your hands to squeeze the cucumbers to release any excess juice) and transfer the cucumber to a fresh bowl.
Stir through the sour cream (adding a little more if you prefer a creamier salad) and the fresh dill.
Chill the salad if you can for twenty minutes or so before serving.