Mix the chapati flour and salt
Rub in the oil
Add about 3/4 cup of hot water to form a soft dough
Knead the dough for 7-8 minutes until smooth
Divide into 12 equal portions
Set a griddle to heat over medium flame
Flatten the ball of dough between the palm of your hands.
Dust it on both sides with flour
Roll out as evenly as possible into a 6 inch circle
Slap the rotli on to the heated griddle and cook for about 1 minute until soft bubbles begin to form
Turn over and cook for 1/2 minute on the other side
Turn the rotli over and repeat for a few seconds. The rotli should puff up
When ready place rotli on plate
Smear with butter (optional) and serve immediatelyN.B. The dough can be kneaded in a food mixer