To make the bran water, boil 1 measure of bran with 4 measures of water for not less than 30 minutes. Simmer together the barley, lentils, and bran water for 3 hours. To flavour, put 4 ounces butter or 3 ounces nutter into a pan with 1 pound sliced onions. Shake over fire until brown, but do not let them burn or the flavour of the soup will be spoilt. Add these to the stock at the end of the first hour. Any other vegetable liked may be chopped to dice and added.
Tomato may be substituted for the onion if preferred and no fat used. Strain through a hair sieve, and serve the clear liquid after boiling up.