In a bowl, mash together banana, sugar, salt, pepper, cumin, baking soda and yogurt.
Add in flour and mix well. Add ghee and mix to incorporate.
Add one or two teaspoons of water only if needed.
Once the dough is soft and pliable, divide it into four equal portions.
Apply some oil on the board, place a potion and with the help of your finger tips shape it into a thin disc.
Transfer it to a tawa and cook both sides until they are brown.
Drizzle ghee while cooking the roti.
Serve it hot out of the tawa.