turn stove on medium heat put butter and basen in the pan . cook about 45 mints.(warm milk and add saffron in it f) . cook till u start smelling aroma of basen. it become kind of dough. then add sugar. mix well and then turn the stove off. and add milk mix real well. and put it in plate and press evenly. sprinkle pista over it . let it cool for hour or till it sattles. cut it into desire pieces. Enjoy.