Summer runner bean stew - Good Food Middle East

Ingredients

• 50ml olive oil
• 1 large onion , thinly sliced
• 280g runner beans
• 4 garlic cloves , thinly sliced
• 4 anchovies , plus a drizzle of oil from the can (optional)
• 2 pinches of chilli flakes (optional)
• 400g large vine tomatoes , chopped
• 4 oregano sprigs , leaves picked, or 1 tsp dried oregano
• 1 tbsp red wine vinegar
• 2 tsp caster sugar
• 400g can cannellini or butter beans , drained
• handful of basil , leaves picked
• 2 tbsp extra virgin olive oil