Use small red potatoes for best texture. Boil potatoes with skins on to retain nutrients. Adjust onion amount to taste or soak diced onion in cold water for milder flavor. Make salad ahead for best flavor. For creamier texture, add plain yogurt or tahini. Variations include adding hard-boiled eggs, fresh herbs, vinegar instead of lemon, crunchy extras, or making it spicy or Mediterranean-style.