In a bowl mix together the white flour, whole-wheat flour, and salt. Drizzle the oil over the flour, and with the palms of your hands, rub the oil into the flour until it is well incorporated. Make a well in the center and pour in the milk. Mix with your hands to form dough.
Turn the dough out onto a floured board and knead for 5 to 10 minutes, until smooth and elastic. Cover the dough