1. Place the flour in a large mixing bowl. Add water, oil, and salt. Mix with fork and then with hands. Keep mixing until you can make a ball.
2. Knead the dough for about 10 minutes. Let rest for 30 minutes in the bowl, covered with a damp cloth.
3. Roll the ball into a 12-inch log and cut into 6 chunks.
4. Roll each chunk into a very thin pancake, about 7-inches in diameter. Don't worry about making the dough into a perfect circle-just try to get it as thin as you can.
5. Heat a cast iron skillet (lightly greased) on medium-high heat. Place one chapati in the skillet and cook for 30 seconds.
6. Use a spatula to lift bread. When chapati gets brown spots and bubbles, flip it over and cook for another 30 seconds.
7. Wrap the cooked chapati in a cloth napkin while cooking the rest.
8. Eat them right away with a little butter or margarine, or use as scoops for eating other dishes.