Add salt to the Makki flour. Knead into a dough by adding warm water. Divide into small balls. Pat each ball into a small round Roti between your palms, or make rotis by patting on a flat surface like you do for Bhakri, or on a plastic sheet taking care that the Roti is not too thin.Cook on a hot griddle brushing oil on both sides.Top with a spoonful of butter and serve hot with Sarson da Saag.