1.5 cups all-purpose flour
Add the HOT water. If you can't handle the heat, use a fork to mix it in, until it cools, then dig your hands in.
Once you've got the water fully mixed in, split the dough into 8 equally sized balls. (If you like thinner tortillas you can probably get 12-15 tortillas out of this dough.)
Call me a cheater... or a tortilla junkie, but I use a tortilla press. They're actually really cheap if you become a tortilla junkie like me. Since I'll assume most of you don't have a tortilla press, you can either use 2 plates & set the dough on the first & use the second to smoosh it (similar to a tortilla press), or you can roll the tortillas out with a rolling pin. If I want big tortillas, I still use a rolling pin. By the way, who cares if they aren't perfectly round (trust me, when I roll them mine aren't), it just adds to the home-cooked-ness.