Lemongrass & Sweetcorn soup with Crème Fraîche - elegant & refreshing - Rest Less

Ingredients

• 3 ears of corn or 325g frozen sweetcorn
• 50g butter
• 1 small white onion, finely chopped
• 1 inch fresh ginger, peeled and finely chopped
• 1 red chilli, seeded and finely chopped
• 3 tablespoons plain flour
• 1 litre milk
• 5 stalks lemongrass, finely chopped
• 4 tablespoons crème fraîche
• salt and pepper