Spaghetti alla puttanesca

Name: Spaghetti alla puttanesca
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Cuisine: Chinese
Ingredients: Low-calorie cooking spray; 1 red chilli, deseeded and finely chopped; ½ tsp dried chilli flakes; 1 large onion, finely chopped; 1 large red pepper, deseeded and diced; 2 garlic cloves, crushed; 2 x 400g cans cherry tomatoes in juice (or chopped tomatoes); 8 pitted black olives in brine, drained and sliced; 1 tbsp capers, drained and rinsed; 1 tsp dried oregano; 200ml hot vegetable stock; 5 tbsp tomato purée; 400g dried spaghetti; 4 tbsp freshly grated Parmesan cheese or vegetarian alternative; Chopped fresh parsley, to serve