- In a saucepan, soften the leek in the butter. Add the apple and sweet potatoes. Deglaze with the white wine.
- Add the chicken broth and ground cloves. Cover and simmer until the sweet potatoes are tender, about 20 minutes.
- Purée in a blender.
- Season with salt and pepper. Serve hot. Garnish with apple slices sautéed in butter, if desired.