In a mixing bowl, combine the flour and salt.

Stir in the vegetable oil or lard until the mixture resembles coarse crumbs.

Gradually add the warm water while mixing with a fork or your hands.

Transfer the dough to a floured surface and knead for about 5 minutes.

Wrap the dough in plastic wrap or cover with a damp cloth and let it rest for at least 15 minutes.

Divide the dough into 12 equal portions.

On a floured surface, roll each portion into a thin circle about 8 inches in diameter.

Heat a skillet or griddle over medium-high heat.

Cook each tortilla for about 30 seconds on each side, until lightly browned and puffed.