butter 1 tb.sp
oil 1 tb.sp
all purpose flour 2 tb.sp
milk 1/2 c
black papper 1/2 t.sp
salt pinch

melt butter in oil then add all purpose flour & fry it for 5 min till light brown.
now slowly add milk with constant stirring.
when mixture is thicken add spices n stir twice.
white sauce is ready