Beer-Braised Beef Stew

Rub one beef chuck roast with 1/2 teaspoon each salt and pepper. In 12-inch skillet, heat vegetable oil on medium-high until very hot. Brown roast on all sides. Transfer to 6- to 7-quart slow cooker bowl. To skillet, add onions, carrots, water, and 1/4 teaspoon salt; cook on medium-high 2 to 4 minutes or until slightly softened, stirring. Add beer and vinegar. Simmer 4 minutes, stirring. Transfer vegetables and liquids to slow cooker bowl along with ketchup, raisins, and brown sugar. Cover; cook 10 hours on Low or until tender. Skim and discard fat from cooking liquid. Slice meat; serve with vegetables and green beans, if desired. Drizzle with cooking liquid.