Mom's Roast Beef

I get alot of compliments on mom's roast. I like mine spicy so I add a lot of garlic pepper and worcestershire sauce.

Worcestershire sauce
garlic pepper
1 can beef broth
2-3 beef cubes
water
1 pkg beefy onion mix

For the first hour cook at 400 for a half hour on each side
then for about 3 hours cook at 300 (I usually cover it until the last half hour)