Gradually stir in warm water until the dough is smooth and somewhat firm like Play-Doh. If it sticks to your hands or feels wet, add more masa harina; if rolling into balls causes cracks, add more water 1 teaspoon at a time.

To shape the tortillas: Preheat a comal, cast iron skillet, nonstick pan, or griddle over medium heat for 5 minutes, until evenly hot.

Cut two round pieces of food-safe plastic from a produce bag about 1/2" larger than your tortilla press diameter. Set aside.

Divide the dough into 16 equal portions and roll each portion into a ball. Place on a clean surface, cover with plastic or damp towel to keep moist.

Working one at a time, sandwich the dough balls in the center of two pieces of plastic.

Place the plastic-enclosed dough on the bottom plate of a tortilla press and gently squeeze the handle until the dough is about 1/16" thick and 5" in diameter for round tortillas. Jiggle the handle near the end for best results.

Cook each side briefly on hot surface until lightly browned, flipping once during cooking process.

Serve warm! Enjoy!