Prepare the zucchini. Wash, top, and tail the zucchini and grate them into a sieve over a mixing bowl.
Sprinkle the zucchini with salt and leave for 30 minutes to let them release their water. Then use your hands or a fork to press them down and force any remaining water through the sieve into the bowl. Pour the water away.
Make the fritters. In the bowl, whisk together the egg, flour, and baking powder until it forms a thick paste. Stir in the grated zucchini, parsley, and feta, and season the batter with salt and pepper.
Heat some oil in a skillet or frying pan and when hot, being frying your feta zucchini fritters.
Spoon a heaped tablespoon of the feta zucchini fritter batter into the pan and use the back of the spoon to flatten it.
Fry 3 or small fritters at a time for a few minutes on each side, flipping only once the edges become golden and crispy.
Make the dipping sauce, blend the yogurt, parsley, lemon juice, and the rest of the mint together.
Serve the hot crispy feta zucchini fritters with the cool mint yogurt dipping sauce and enjoy.