My cream of celery soup recipe is on the old forum i think, but went something like this:
Celery, Potato, Leeks, Stock, Seasoning, Cream.
I have no potato in, but i have celeriac, reduced price and in need of using today... Think it'd work instead? It's celery soup ... and celeriac is celery root.... so will give it a go later. Celeriac is also lower carb than potatos i think!
See how it goes.....