Mary Berrys Carrot and Coriander Soup 🍲

Ingredients

• 1 tbsp vegetable oil
• 1 onion, sliced
• 450g/1lb carrots, peeled and sliced
• 1 tsp ground coriander
• 1.2 litres/2 pints vegetable stock
• A large bunch of fresh coriander leaves, roughly chopped
• Salt and freshly ground black pepper
• Milk (optional)