⅓ cup dry white wine or reduced-sodium chicken broth
⅛ teaspoon ground black pepper
1 bay leaf
¼ cup chopped pecans, toasted
In a large saucepan, heat oil over medium-high heat. Add carrots, leek, sweet pepper, onion, and garlic; cook about 5 minutes or just until vegetables are tender, stirring occasionally.
Add broth, sweet potatoes, potato, wine, black pepper, and bay leaf. Bring to boiling; reduce heat. Cover and simmer for 15 to 20 minutes or until the potatoes are tender. Discard the bay leaf. Remove from heat and cool soup slightly.
Transfer half of the soup to a blender or food processor. Cover and blend or process until smooth. Repeat with remaining soup. Return all soup to saucepan. Heat through. Sprinkle individual servings with toasted pecans.