Purée of Onions

6 onions
1 small turnip
¹⁄₂ head celery
1 quart white stock
2 ozs. butter
¹⁄₂ pint cream or milk
12 button onions

Cook the large onions, turnip, celery and butter with the stock until very tender. At the same time prepare and boil the button onions until soft. Put the vegetables and stock through a fine sieve. Return to the fire. Add the cream or milk, scalded, and the button onions. Season.