Ingredients
1 fresh beef brisket (3 to 4 pounds), trimmed and cut in half1 cup ketchup1 small onion, chopped2 tablespoons cider vinegar1 tablespoon prepared horseradish1 tablespoon prepared mustard1 teaspoon sugar1/2 teaspoon pepper
Preparation
Place the brisket in a 3-qt. slow cooker. In a bowl, combine the remaining ingredients. Pour over brisket. Cover and cook on low for 6 hours or until tender.
Remove the beef; set aside. Pour the sauce into a saucepan; cook, uncovered, over low heat for 13-15 minutes or until reduced and thickened, stirring occasionally. Slice the meat across the grain; serve with sauce.