Irish Beef Stew

INGREDIENTS

• 1 1/4 pounds stew beef, cut into 1-inch pieces
• 2 cups 1/2-inch pieces peeled carrots
• 2 tablespoons chopped fresh parsley
• 8 cups beef stock or canned beef broth
• 2 tablespoons tomato paste
• 1 tablespoon sugar
• 1 tablespoon Worcestershire sauce
• 6 large garlic cloves, minced
• 1 tablespoon dried thyme
• 1 large onion, chopped
• 1/4 cup vegetable oil
• 2 tablespoons (1/4 stick) butter
• 2 bay leaves
• 3 pounds russet potatoes, peeled, cut into 1/2-inch pieces (about 7 cups)