Add all the ingredients to ragi flour and make a sticky dough with buttermilk.
It should not be runny just a sticky dough.
Now heat a tava and grease it with oil.
Take the dough in your hand and spread it out on the tava gently with your hand to form a rustic, thick pancake. Pat it down as you spread.
Then cook it on medium flame till one side is brown and crispy.
Put some oil on the other side and flip it.
Cook it covered for a couple of minutes or till the rotti is cooked properly.
Serve hot with a spicy mint coriander chutney, a yoghurt raita or even ketchup.