Creamy curried carrot & butter bean soup

INGREDIENTS

• 2 tbsp sunflower oil
• 2 onions , chopped
• 1 tsp turmeric
• 1 tsp ground ginger
• 1 tbsp ground coriander
• 1 tbsp medium curry powder
• 1¼kg carrots , 1kg/2lb 4oz roughly sliced, rest coarsely grated
• 3 x 400g cans butter beans , drained and rinsed
• 1.2l vegetable stock
• 400ml whole milk
• snipped chives , if you like, to serve, plus 2 crusty loaves