Preheat oven to 180ºC . In Quart Dutch oven, heat oil over med-high heat until hot. Add beef roast; brown. Remove roast; season with salt and pepper. Add onions, celery and carrots to pan; cook and stir until onions are tender, about 5 minutes. Add remaining ingredients; stir to blend. Return roast to pot; bring to a boil. Cover tightly; transfer pot to oven. Cook for 3 hours, or until beef is tender, turning roast halfway through cooking time. Remove roast from pan; keep warm. Strain cooking liquid; reserve. Remove and discard bay leaves. Puree vegetables in a blender or food processor. Add 2 cups cooking liquid through top or feed tube with motor running. Carve roast into slices and serve with pureed vegetable sauce. Makes 6 to 8 servings.