Jerk sweet potato & black bean curry - Good Food Middle East

Ingredients

• 2 onions, 1 diced, 1 roughly chopped
• 2 tbsp sunflower oil
• 50g ginger, roughly chopped
• small bunch coriander, leaves and stalks separated
• 3 tbsp jerk seasoning
• 2 thyme sprigs
• 400g can chopped tomatoes
• 4 tbsp red wine vinegar
• 3 tbsp demerara sugar
• 2 vegetable stock cubes, crumbled
• 1kg sweet potatoes, peeled and cut into chunks
• 2 x 400g cans black beans, rinsed and drained
• 450g jar roasted red peppers, cut into thick slices