This is an Iraqi Kurdish soup that is very popular in Israel. 4 leaves Swiss chard, stalks discarded and leaves cut into wide ribbons 2 stalks celery, leaves removed and chopped and stalks cut into 1/4-inch slices 2 small zucchini, quartered lengthwise and thickly sliced 2 small carrots, peeled and sliced into rounds 1 large potato, peeled and cut into cubes 1 head garlic, cloves peeled and lightly smashed 9 tablespoons lemon juice 1 tablespoon white sugar (Optional) 1 tablespoon salt 6.3 cup...