Zucchini Corn Fritters

Makes 16 fritters

1 1/3 cups fortified soy- or rice milk
1 tablespoon cider vinegar
1 cup cornmeal
1/4 cup unbleached flour
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 medium zucchini
1 cup fresh, frozen, or canned corn
vegetable oil spray