Shredded Green Chili Beef

Shredded Green Chili Beef 2 large sweet onions, halved and thinly sliced 4 tablespoons packed brown sugar, divided 1 tablespoon paprika 1-1/2 teaspoons salt 1 teaspoon cayenne pepper 1 teaspoon chili powder 1 teaspoon garlic powder 1/2 teaspoon pepper 1 boneless beef chuck roast (about 3 pounds) 2 tablespoons canola oil 1 can (28 ounces) green enchilada sauce Mashed potatoes, optional Place onions and 3 tablespoons brown sugar in a 5- or 6-qt. slow cooker. Combine remaining brown sugar and the next six ingredients; coat beef with mixture. In a large skillet, heat oil over medium-high heat; brown beef, 1-2 minutes on each side. Transfer to slow cooker; pour enchilada sauce over beef. Cook, covered, on low until beef is tender, 7-9 hours. Remove beef; shred meat with two forks. Return to slow cooker; heat through. If desired, serve over potatoes.