Cut the cucumber in half, scrape out the seeds and grate. There's no need to peel it. Use your hands to squeeze out as much of the water from the cucumber as you can.
Place the grated cucumber in a bowl with 250g dairy free yoghurt, the handful of chopped dill, the juice of half a lemon, two crushed cloves of garlic and a tablespoon of olive oil. Mix well.
Season to taste with salt and pepper.
Serve immediately or store in an airtight container in the fridge.