Whisk dry ingredients together. Add butter and water.
Mix into a shaggy dough
Dump on to counter. Knead for 2-3 minutes until dough becomes a smooth ball.
Cover with a damp towel. Rest for 5-10 minutes.
Divide dough into 12 equal portions.
Shape dough in small rounds. Cover and let rest on the counter another 10 minutes.
Generously flour your work surface. Using a rolling pin, roll dough out as thin as you can get it, a 10-12 inch round.
Heat a cast iron skillet on medium / medium-high.
Spray or add a small amount of oil to the hot pan.
Cook tortilla 30-60 seconds on the first side, flip and cook another 30 seconds.
Place a paper towel into a large ziplock bag. Place warm tortillas in the unzipped ziplock bag while you cook the remaining tortillas.