Sophie Dahl's Lettuce Soup Recipe

Ingredients

• 2 heads lettuce (garden or butter lettuce works best)
• 2 cups chicken or vegetable stock
• 1 cup frozen peas
• 2 cups 2% milk
• 1 tsp light brown sugar
• 1 pinch nutmeg (freshly grated )
• salt and pepper
• Crème fraîche or a pat of butter (to serve)