Ingredients: Celery, rice, stock.
Cut up a head of celery and remove all the leafy parts, then boil it in good stock and add two ounces of rice, and boil till it is well cooked.
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.