Drain pears, reserving juice; chop pears and set aside. In a Dutch oven, brown beef in oil in batches; drain and set aside. In the same pan, saute onions in butter for 5 minutes. Stir in the flour, ketchup, salt, lemon peel, thyme, pepper, cinnamon and cloves until blended.
Gradually stir in the broth, wine and reserved pear juice. Add bay leaf and beef. Bring to a boil. Reduce heat; cover and simmer for 1 hour.
Add sweet potatoes; cover and simmer 30 minutes longer or until potatoes and beef are tender. Stir in raisins and pears; heat through. Discard bay leaf. Garnish with parsley. Yield: 10 servings.