Here is a case of yummy yummy good for your tummy Army bread in its easy open container. Of course, Army bread is not really bread but hardtack, which is a thick biscuit made of flour, vegetable fat, and salt. They were said to be quite tasty when eaten fresh but that rarely happenned. Most troops got their hardtack months after it was baked when it was hard as a rock and infested with weevils. The soldiers called them "sheet iron crackers" and "worm castles."