Mix in the Flour, salt and Oil.
Knead it well to a semi stiff dough. Let it rest for 15-20 minutes so that it helps in hydration.
Divide the dough into equal size balls.
Grease two zip locks well. Add one ball in between and press in between the tortilla maker or Roti maker
Press it so that you get a disc abour 4-5 inch in diameter (Size may vary on the initial ball size)
Do not press it very hard or the tortilla will break. Also you would be tempted to make it thin, but do not make too thin, else it would be difficult to put it on the pan.
Cook in on slow to medium until cooked from both the sides.