Mix the flour, baking powder and salt in a mixing bowl
Add the oil to the warm water
Add the oil/water mixture to the flour mixture, one tablespoon at a time
Mix the doguh after each addition of oil/water
Repeat this process untill all the oil/water has been added...the dough will be sticky
Knead the dough on a floured sufface for 4-5 minutes, adding more flour as needed
Place the dough back in the mixing bowl and cover with a damp towl
Let the dough rise for 20 minutes
Pinch the dough into 12 golf ball-sized balls and cover with damp towel
Let the balls rest for 10 minutes
Preheat a cast iron skillet or other skillet over medium heat
Roll out the balls to a 6 or 7 inch diameter circle, about 1/8 inch thick
Place one tortilla in the preheated skillet and cook for about 30 seconds
Flip the tortilla over and cook the other side
Repeat this process will the remaining tortillas