Mix maize flour, wheat, salt well
Add warm water and knead to make a medium soft dough
Divide into 8~9 equal portions and shape into balls
Pat or roll each ball to make a roti of medium thickness
Heat a tawa and place a roti on it
Cook on moderate heat till one side is half-done
Turn over and spread some white butter over the surface
Turn over and spread some more butter on the other side
Cook till both sides are golden brown
Serve hot with a piece of white butter over it