hard tack

I had always made it a rule to keep a supply of sugar and some hard tack in my haversack, ready for an emergency.

Yes, I'm sure that it's one o' them wagons we was guardin', and I recollect it was loaded with hard tack.

Having a romantic temperament and a taste for heroics, I had wished to fight and eat hard tack for my country.

This time there were no hot beefsteaks, no fresh rolls, no fried potatoes, no coffee—nothing but cold corned beef and hard tack.

There was the breakfast—salt junk and hard tack—regular sailor's fare.