medium zucchini (about 1/2 kilogram or 1 pound), shredded • Salt • Freshly ground black pepper • large eggs, beaten • all-purpose flour • extra virgin olive oil • or 5 ounces) crumbled feta cheese • scallions, finely chopped • finely chopped dill • baking powder • vegetable oil, more as needed • Tzatziki or other yogurt sauce •