Vichyssoise with Watercress - Love of Food

Ingredients

• 2 tablespoons olive oil
• 2 cups leeks, chopped
• 1 ½ cups red potatoes, chopped
• 1 cup watercress
• 4 cups vegetable stock
• 2 teaspoons salt
• 1 teaspoon white pepper
• 1 lemon
• ½ cup cream
• 2 teaspoons chives, finely chopped
• 4 teaspoons sour cream
• 4 watercress leaves