Making Hardtack: Flour, Water, Salt — Nothing Else

The Recipe

Ingredients (makes approximately 20 biscuits):

• 2 cups (250g) all-purpose flour, plus more for rolling
• 1 teaspoon salt
• 1/2 to 3/4 cup (120-180ml) water

The amount of water varies by flour. Add water gradually. You want a stiff, dry dough — much stiffer than bread dough. If the dough sticks to your hands, it's too wet.

Process:

1. Mix flour and salt.
2. Add water gradually, mixing until the dough just comes together. Knead briefly — 2-3 minutes.
3. Roll out to 1/4 to 3/8 inch thickness on a floured surface. Thinner dries faster; thicker takes longer but is more substantial.
4. Cut into squares or rectangles, approximately 3×3 inches. The traditional Navy issue was 3×3 inches.
5. Using a nail, skewer, fork, or dedicated hole punch, create a grid of holes in each biscuit spaced about 1/2 inch apart. Punch all the way through.
6. Bake at 375°F for 30 minutes, flip, bake 30 minutes more.
7. Reduce oven to 250°F and continue baking another 60-90 minutes until biscuits are completely dry throughout.

Test for doneness: Break a biscuit in half. There should be no moisture visible in the center. The break should be completely dry and the sound should be a sharp crack. If you see any moisture or softness in the center, continue baking.

Variations

Whole wheat hardtack: Substitute whole wheat flour. Nutritionally denser. Slightly shorter shelf life due to the oils in whole wheat — but still years.

Cornmeal hardtack: Substitute up to half the flour with fine cornmeal. Less gluten, more crumbly. Traditional in some regional military rations.

No-salt: For long-term storage situations where sodium needs to be managed, hardtack without salt works fine. It tastes bland but preserves equally well.

Storage

Cool completely on a rack before packaging — residual warmth causes condensation inside containers.

Best storage: Vacuum-sealed in Mylar bags with oxygen absorbers. Shelf life 5+ years.

Good storage: Sealed airtight in glass jars or metal tins. Shelf life 2-5 years.

Acceptable: Zip-seal bags with maximum air removed. Shelf life 1-2 years.

Store in a cool, dark location. Light and heat accelerate the degradation of the flour.

Consuming Hardtack

The standard approach is soaking. Drop a piece into warm water, soup, or broth for 10-20 minutes. It becomes a thick, starchy mass — not gourmet, but edible and filling.

Frying is better. Soak briefly (5 minutes) to slightly soften the exterior, then fry in any available fat over medium heat. The outside browns and crisps while the inside softens. This is how Civil War soldiers turned hardtack into something approaching palatability.

Crumbled hardtack thickens soups and stews. Break a piece into pieces and add to boiling liquid — it dissolves and thickens the broth.

| Nutritional content per biscuit (approx. 30g) | Amount | |-----------------------------------------------|--------| | Calories | 110 | | Carbohydrates | 22g | | Protein | 3g | | Fat | 0.5g | | Sodium | 120mg |

No fat in hardtack is by design — fat goes rancid and dramatically shortens shelf life. Hardtack is a carbohydrate and nothing else. It needs to be paired with fat and protein sources to constitute adequate nutrition.