Spindletop BBQ Brisket
3 ½ pound boneless lean beef brisket, thick cut
½ cup ketchup
½ cup water
1 small onion, finely chopped
½ teaspoon salt
1 tablespoon apple cider vinegar
1 ½ teaspoons white horseradish
1 ½ teaspoons prepared mustard
⅛ teaspoon pepper
Place beef, fat side up, in a heavy 4-quart casserole. Stir together the remaining ingredients and pour over beef. Bake is 300° oven, tightly covered, 3 to 3 ½ hours or until tender. Chill beef and sauce separately. Thinly slice as much of the beef as you want to serve. Remove hardened fat from sauce. Heat sliced beef in a generous amount of sauce.
