Tomato red wine chorizo risotto

Name: Tomato, red wine & chorizo risotto
Ingredients: olive oil; 2 shallots; 1 clove of garlic; 80 g higher-welfare chorizo; ½ a bunch of fresh flat-leaf parsley; 750ml–1 litre of organic chicken or vegetable stock; 1 x 400 g tin of quality chopped tomatoes; 300 g risotto rice; 200 ml red wine; 50 g Parmesan cheese , plus extra to serve