Use beef or game for the stew.
It is possible, even recommended, to prepare the stew, fondant potatoes, salsify and celeriac fritters ahead of time. Add the bouillon when the fondants are ready to go in the oven. Reheat the stew, roast the carrots and deep fry the fritters when needed.
Preferably, use panko breadcrumbs for the fritters because they give a better result when frying.
The salsify is a rather unknown vegetable that was quite comment before the second world war but who feel out of grace after the war. Preparing the vegetable is a bit tricky. When peeled, a white sticky substance will be released and the white salsify will rapidly discolor, hence the lemony water. Wearing gloves when handling them is a sound precaution. The vegetable is typical for the winter time.