Spicy pasta soup - Good Food Middle East

Ingredients

• 1 tbsp olive oil, plus extra for drizzling
• 1 red onion, finely chopped
• 1 red chilli, deseeded and finely sliced
• 800g can whole plum tomatoes
• 1l vegetable stock
• 100g broken spaghetti
• 4 tbsp chopped pitted black olives
• 2 tbsp chopped capers, drained and rinsed
• large handful basil leaves, roughly torn, or 1 tbsp pesto