preheat oven and preheat for about 5 min ..After 5 min keep ur cake into the cooker & bake it for aboit 40 min at medium flame...
beat butter and sugar until it becomes fluffy and creamy then add CONDENSED milk stir lightly ,
at these stage add vanilla Essesnce ..
Now sift all dry ingredients including baking powder and soda seive 3 times ...Add Dry ingredients into butter Mixer ..use cut &Fold technique mix lightly ,lastly add vinegar(do not over beat the batter) ,
grease aluminium mould or loaf pan with butter so that if becomes easy to demould ..