Beef and chorizo stew

1 tbsp extra virgin olive oil

110g chorizo sausage, sliced

1kg organic stewing beef, cut into 3cm cubes

2 onions, sliced

4 garlic cloves, crushed

2 tbsp flour

2 tbsp tomato purée

½ tsp paprika

1 tsp thyme leaves

4 tbsp dry sherry

250ml red wine

250ml beef, chicken or vegetable stock

salt

black pepper