Margarine

A substance made by emulsifying vegetable oils or animal fats with water, milk, etc., and used as a spread (on bread, etc.) and as a cooking fat, originally as a substitute for butter. Cf.
“margarine, n. and adj.” OED Online, Oxford University Press, January 2018, www.oed.com/view/Entry/114020. Accessed 23 February 2018.