Heat half a pint of mirepoix (No. 138) in a saucepan with one ounce of butter, adding three tablespoonfuls of flour, and half a tablespoonful of salt; moisten with three pints of white broth (No. 99), and put in two well-pared, fresh, or three canned, artichokes, and cook well for thirty minutes; strain through a sieve, stir in half a cupful of cream, and serve with a handful of croutons souffles (No. 134).