My mother served this for a Thanksgiving lunch. I admit, I was a little dubious about it at first, since beets have never been my favourite vegetable. (Once upon a time they were my absolutely least-liked food, but I've seen at least a glimmer of the light.) Anyway, this soup was delicious! Just wonderful! I made sure to get the recipe from her before heading home. (She adapted the recipe from Gourmet Magazine.)Note: the celery can be replaced with peeled, chopped celery root.