1 ½ cups masa harina
¼ teaspoon salt
2 tablespoons of any fat of choice (lard is best)
About 1 cup hot water, or more as needed
Flour for kneading
Combine the masa and salt in a bowl; stir in the oil. Slowly stream in the water while mixing with your hand or a wooden spoon until the dough comes together into a ball.
Turn the dough onto a lightly floured surface, and knead until it is smooth and elastic — just a minute or two. Wrap in plastic, and let it rest at room temperature for at least 30 minutes or up to a few hours.
(If you decide to wait for 30 minutes) At the 25 minute mark of waiting, heat up your griddle to the highest temperature setting.
Break off pieces of the dough (you’re shooting for 12 to 16 tortillas total), and lightly flour them. Put them between 2 sheets of plastic wrap, and press them in a tortilla press, or roll them out or press them with your hands to a diameter of 4 to 6 inches. Begin to cook the tortillas as you finish pressing or rolling them.
Cook the tortillas, until brown spots appear on the bottom, about a minute. Flip, and do the same on the other side. Wrap the cooked tortillas in a towel to keep them warm; serve immediately, or cool and store tightly wrapped in the fridge for a few days.