The Book of Household Management by Mrs. Beeton

380. INGREDIENTS.--1 teaspoonful of flour, 2 oz. butter, 1/3 pint of

milk, a few grains of salt. _Mode_.--Mix the butter and flour smoothly together on a plate, put it into a lined saucepan, and pour in the milk. Keep stirring it _one way_ over a sharp fire; let it boil quickly for a minute or two, and it is ready to serve. This is a very good foundation for onion, lobster, or oyster sauce: using milk instead of water makes it look so much whiter and more delicate. _Time_.--Altogether, 10 minutes. _Average cost_ for this quantity, 3d. CAMP VINEGAR.