The recipe yield is:
Wash peas and soak them overnight in cold water, or in hot water for one hour. Drain them and set aside. Heat the butter in a saucepan and saute the onion until light brown. Add the carrots and turnip and continue cooking 5 mins. Add the peas and veg stock, and stir well. Cover the pan, bring to a boil, and simmer 1 - 1 1/2 hours until the peas are really tender. Stir occasionally, and add water if necessary. Season to taste.