Once a go-to for cowboys, Civil War soldiers, and sailors, so-called survival bread is still a popular recipe today, particularly on Pinterest. In fact, the cheap and nonperishable food, also known as hardtack and army bread, is the most-searched recipe on Pinterest for users in Alaska, according to Food & Wine.

Perfect for camping, hiking, or trekking across the country, the bread—which is made from just three ingredients—can last for a year or more when stored in an airtight container, according to Leaf.tv. Made from flour, water, and salt, the hard bread can be easily baked in an oven at home or over a fire.

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Back in the 19th century, soldiers would eat the cracker-like bread plain, or crumble it up and add brown sugar and whiskey to create pudding, according to the Washington Post. Nowadays, most home cooks prepare the bread with just the traditional ingredients, or they make it more interesting by adding butter, sugar, and even coconut oil.

There's also Sailor Boy's Pilot Bread, the modern-day, manufactured alternative to homemade survival bread. Beloved by Alaskans, it's most often paired with jam, honey, and moose-meat burgers, according to the Alaska Dispatch News. "For rural Alaskans it's soul food," the author, Victoria Barber, wrote.

If you're interested in making the adventure-friendly food at home, give one of these recipes a try:

(h/t Food and Wine)