Peel and chop
the cucumber. Sprinkle with salt. Place in sieve over bowl and allow to
drain for 30 minutes. Chop tomato and place in the second bowl. Slice
onion very finely. Mix tomato, onion and cucumber. Mix yoghurt, pepper,
garlic and tabasco or chili sauce. Pour yoghurt mixture over vegetables,
mix well and refrigerate for an hour.