I love braised celery as well, usually I cook it in a lamb or pork avgolemono fricasee with braised celery and leeks and it's divine, but you could make it on its own I suppose. Instead of the pork or lamb you could use a bit of proscuitto or pancetta as a flavoring. How about this?
- render some pancetta in a pan and remove.
- add some leeks or shallots and soften along with some butter or olive oil and then add the celery. Brown just slightly.
- Add some water or vegetable stock and braise slowly until tender.
To make the egg lemon sauce beat one egg and the juice of one lemon in a small bowl. Temper the egg/lemon with some of the braising liquid slowly. Pour the mixture back into the pan and season to taste. Sprinkle with the crispy pancetta and serve.
It actually sounds pretty good, I may try it myself!