First slice the cucumber thinly, then cut the slices in half, put into a basin and sprinkle with salt. Leave it for an hour, by which time a lot of the liquid will have been drawn out of it, so drain off the liquid and dry the cucumber in some kitchen paper.
Now combine the cucumber, yoghurt, spring onion and garlic, mixing them thoroughly. Season with salt and freshly milled pepper. Pour the mixture into a serving bowl, sprinkle with cayenne and cumin, cover and chill thoroughly before serving.
_This recipe is taken from Delia Smith’s Complete Cookery Course and Delia Smith’s Complete Illustrated Cookery Course._