Potato and chorizo soup

Surprise surprise, another recipe with chorizo in it. Cannot get enough of the stuff! This one's not spicy at all though as the potatoes calm it down somewhat.

Ingredients:

Olive oil, for frying
125g chorizo sausage
1 large onion, chopped
300g sweet potatoes, peeled and chopped
300g floury potatoes, peeled and chopped
900ml chicken stock
2 tbsp chopped fresh chives, to garnish
1 tbsp greek yoghurt per person to serve

Method:

1. Finely slice a quarter of the chorizo, then chop up the rest;

2. In a large casserole, fry the sliced chorizo in olive oil over a moderate heat until crispy, then set aside until the end;

3. Add the rest of the chorizo to the pan with the chopped onion and fry until the onions have softened;

4. Add both sets of potatoes and fry for a further 5 mins;

5. Stir in the chicken stock, put a lid on and simmer for 45 mins or until the potatoes are fully cooked;

6. Puree the soup in a blender in stages and return to a saucepan. Reheat gently and season to taste.

7. Stir in a swirl of greek yoghurt or soured cream and sprinkle over the chives and the crispy chorizo slices.

8. Serve with warm ciabatta and enjoy.