Curried Celeriac and Apple Soup

Well, its time to make soup again. I had a celeriac or celery root in my larder which I had originally bought to make a pea soup, but then I decided to add some to mashed potatoes and now I needed to use up the rest. Looking through my Soup cookbook, I found a recipe with leeks and apple. Easy to make and puree. The result was a golden colour. Tastes nutty, a bit tart with the light hint of curry.