Sweet Potato & Celery Soup

Simple, tasty soup (and suitable for vegans too!).
Ingredients:

• 1 onion, chopped
• about 5 celery sticks, chopped
• about 600g sweet potato, peeled & chopped
• 1.5 litres of veg stock (I used an oxo cube)
• black pepper
• a little veg oil

In a large saucepan add the onions & celery to the oil, soften gently. Then add the sweet potato and black pepper.Add the stock, cover & simmer for about half an hour. The sweet potato should now be lovely and soft. Blend the soup, personally I like this soup to be super smooth, but if you prefer you could just blend half the soup. Put the soup back on the heat & ensure it is warmed through, then serve with crusty bread.