My friends Gloria & Debbie would prepare the roast beef this way at church during conferences and it was always tender and delicious.
8 hrs
10 min
7-8 hrs
5
Gravy:
1 1/2 cups water
3 Tbsp Bisto
5 white mushrooms (optional) or more
While the roast is resting , sauté the mushrooms
Take the pan drippings, add water and 3 Tbsp. bisto rich brown gravy powder
Heat until boiling, stirring constantly with a whisk
Serve immediately then refrigerate
The next day the meat can be warmed in your oven at 350 deg. F for 25-30 min in a covered dish