Ingredients: Fowl stock, ground rice, milk, butter.
Put a tablespoonful of ground rice into a saucepan and gradually add half a pint of milk, boil it gently for twelve minutes in a bainmarie, but stir the whole time, so as to get it very smooth. Just before serving add an ounce of butter, pass it through a sieve, and mix it with good fowl stock.
See also: Wikipedia Cookbook.
Source: ''The Cook's Decameron: A Study In Taste, Containing Over Two Hundred Recipes For Italian Dishes'' from a project that puts out-of-copyright texts into the public domain. This is from a *very* old source, and reflects the cooking at the turn of the last century. Update as necessary.