Is butter superior to margarine? For years, the warring champions of butter and margarine (made from vegetable fat mostly soybean and cottonseed oil) have been smearing each .
Since then, margarine-makers and embattled housewives, who saw no reason why they should have to spend 15 minutes kneading the coloring into a pound of margarine, have persuaded .
Generations of butter lovers have held that margarine should not qualify as a food.