Celery Soup
This is a classic French recipe, this one taken again from Mark Bittman's How to Cook Everything Vegetarian.
3 TB butter
1 small onion
1 lb celery, roughly chopped (reserve the fresh greens for garnish)
1 large potato
salt and freshly ground black pepper
5 cups vegetable stock
2 tsp sugar or honey to taste (optional)
1/2 cup cream or sour cream (optional)
1/4 cup celery greens, finely chopped
Put the butter in a large, deep saucepan or casserole over medium heat. When the butter melts, add the vegetables. Season w/ salt & pepper and cook, stirring occasionally, for about 10 minutes, until celery softens a bit. Add the stock and cook until the vegetables are very tender, 15 to 20 minutes more.
Puree the soup in batches in food processor or blender and return to the pot. You may prepare the soup in advance up to this point. Cover and refrigerate for up to 2 days and reheat before proceeding.) Adjust the seasoning, adding more salt and pepper as needed. Reheat the soup in the saucepan and stir in the cream if you are using it, garnish with celery leaves and serve.