Gather all ingredients.

Mix whole wheat flour, all-purpose flour, and salt in a large bowl. Use a wooden spoon to stir in water and oil, creating a soft, elastic dough. Add more water as needed.

Knead dough on a lightly floured surface until smooth.

Divide dough into 10 equal portions. Roll each piece into a ball and let rest for a few minutes.

Heat a lightly greased skillet over medium heat. Roll dough balls on a floured surface until very thin.

Cook chapati on a heated skillet until bottom develops brown spots, about 30 seconds, then flip and cook for another 30 seconds.