Step #1 Dice the cucumber, sprinkle with salt & place this in a colander to drain for about 1/2 hrs.
Step #2 Rub the inside of a large serving bowl with the exposed sides of the cut garlic.
Step #3 Rinse the bowl with vinegar then tip the vinegar out.
Step #4 Drain (and rinse - optional) the cucumber then stir in theto the yoghurt.
Step #5 Turn the yoghurt & cucumber mix into a container, cover & keep in the fridge for 1/2 hr before serving to allow the flavours to mingle.
Step #6 To serve: pour the cold soup into individual soup bowls & garnish with a drizzle of oil (this can be stirred into the soup after serving)and a mint leaf.