Slow-Cooker Beef Short Ribs

Slow-Cooker Beef Short Ribs

1/3 cup flour
1 teaspoon salt
1/4 teaspoon pepper
2 1/2 lbs boneless beef short ribs
1/4 cup butter
1 cup chopped onions
1 cup beef broth
3/4 cup red wine vinegar
3/4 cup brown sugar
1/4 cup chili sauce
2 tablespoons catsup
2 tablespoons Worcestershire sauce
2 tablespoons minced garlic
1 teaspoon chili powder

Combine flour, salt and pepper in a bag. Add ribs and shake to coat. Brown ribs in butter in a large skillet. Place in slow cooker. In the same skillet, combine remaining ingredients. Bring to a boil while stirring. Pour over ribs. Cover and cook on low for 9 hours.