Step 1Start by grating the cucumber. Once grated, use your hands to transfer the cucumber to a bowl with yogurt. Do not pour in the cucumber juices or the tzatziki will be too runny.
Note: If you want really thick Tzatziki, you can squeeze even more cucumber juices out before adding to the bowl with yogurt. If you do, don't waste the cucumber juices but instead make some refreshing cucumber water by mixing them with still or sparkling water and some ice.