1. Chop the onion and the white part of the leek. Place in a saucepan with the oil and cook gently.
2. Wash the peaches and cut them in half. Remove the pits, then cut into quarters and sauté with the onion and leek. Cover with chicken stock, season with salt and pepper, add some fresh grated nutmeg, a pinch of cinnamon and the cloves (stuck into a little piece of onion to make them easier to remove.) Cover and cook for 10 minutes or until the peaches are tender.
3. Remove the onion with the cloves, purée the soup in a blender, add the cream and bring to a boil. Correct the seasoning, stir in the butter and cool.

Presentation

1. Blanch and peel the peaches and cut into thin wedges. Cut the ham into strips.
2. Pour the chilled soup into bowls. Sprinkle with mint.
3. Garnish with peaches and ham.