Brown in a saucepan one sliced onion, one ounce of raw lean ham, one sprig of thyme, and twelve whole peppers, with one ounce of butter. Add a teaspoonful of powdered curry diluted in a pint of sauce veloute (No. 152); boil for ten minutes. Then strain through a Chinese strainer into another saucepan, being careful to pour in half a cupful of cream, the juice of half a lemon and two egg yolks. Then serve.