My Favorite Sirloin Tip Roast

Place a sheet of aluminum foil inside a black iron skillet with edges extending upward slightly
Place roast in skillet on top of foil
Place pats of butter over roast to cover
Sprinkle with black pepper
Sprinkle generously with Worcestershire Sauce
Place in a 350 oven
Baste occasionally with the juices
Cook until desired doneness
Remove from oven and let set a few minutes before slicing
Slice *thinly* to serve
When there are leftovers, I slice thinly, and sizzle in a black skillet in more butter and Worcestershire
This is truly delicious. Great in wraps also.
For a sandwich dip, extra butter and Worcestershire Sauce can be cooked separately and cooked down for a little while
Make sandwiches on hearty crusty bread, serve some of this sauce in a separate bowl and dip away! :)