1/2 onion, sliced
1 pkg. onion soup mix
5-6 lb. beef roast
1 c. ketchup
4 tbsp. horseradish
4 tbsp. mustard
2 tbsp. apricot preserves
Coca Cola

Put onion on pan bottom. Put in roast. Pour remaining ingredients over roast. Add about 2 1/2 cups cola. Bake until tender or about 2 hours at 325 degrees or bake overnight at 225 degrees.