A box grater or a plank grater can be used for grating the cucumber. On a board or a plate, hold the grater firmly with one hand and rub the peeled cucumber up and down on the medium-sized holes of the grater. Set aside.
In a bowl, combine garlic, salt, pepper, yogurt, sour cream, lemon juice, rice vinegar, dill, and Greek seasoning. Adjust seasonings to your taste.
Add the shredded cucumber to the prepared sauce; cover and place into refrigerator for several hours or overnight before serving.
Cucumber Sauce - Greek Tzatziki Sauce Recipe: https://whatscookingamerica.net/karencalanchini/cucumbersauce.htm