1 c. catsup
1 c. water
2 tbsp. vinegar (apple cider)
1 sm.-med. onion, sliced thinly
1 tbsp. prepared mustard
1 tbsp. horseradish
1/4 tsp. pepper
1 (4 lb.) beef brisket
2 tsp. salt
Approx. 2 tbsp. brown sugar

Combine everything well, add meat and marinate several hours in refrigerator (or overnight). Place meat and marinade in roast pan, cover and bake at 300 degrees for approximately 4 hours or until tender. Skim off excess fat from sauce. Wonderful with mashed potatoes and some kind of greens.