Rutabagas, yellow turnips, Swedes, whatever you call them, don't turn up your nose until you've tried them. They're sweet and earthy and wonderful, as is this soup. It's thickened with rice and is so much better on day two that I've written the recipe to include that direction. This soup almost demands a great loaf of bread to go with it and I encourage you to not omit the tarragon garnish. I think it makes the soup. Adapted from Rozanne Gold, a favorite cookbook author. Cook time includes overnight refrigeration.