For months, stores have been struggling to stock enough baby formula, even as manufacturers insist they are producing at full capacity. In February, the Food and Drug Administration shut down a formula production facility run by Abbott Nutrition, which makes Similac, Alimentum and EleCare products, due to potential bacterial infections. Between a broken supply chain and recalls, families face the painful sight of bare shelves once occupied by cans of formula. “I just got a call from a mother I know, asking me to go to the supermarket and see if there is any formula,” Rabbi Shlomo Litvin of the...