I cook on a Weber charcoal grill..
I let it burn long enough for the fumes to disapate and then I put the roast on the flame and cover the grill..
Make a few slits in the roast and insert a few peeled garlic gloves in the slits..
Drizzle some olive oil on that side of the roast and rub in some steak seasoning...Sear that side down in a large skillet on the stove for about 10 minutes...Do the same with the other side..
While that's working, Peel some potatoes and cut them into fourths..(about the size that you would use for home fries or a little bigger)You can throw some carrotts in too if you like..(the same size as the potatoes of course...)
Then prepare three large pieces of foil and lay them one on top of the other and crimp up the sides so nothing will fall out..
After the roast is seered put it in the center of the foil and place the potatoes and carrotts around the roast...(sometimes I'll throw some mushrooms on top)
In a saucepan, make about a cup and a halp of beef broth..
Pour the broth onto the roast just so it comes about half way up the side without spilling out of the foil and making a huge mess..(you might not need to use all of the broth)
Then start with the center piece of foil and wrap it up around the roast and potatoes as tight as you can and continue to do the same thing with the second and third piece of foil so that you have a tight seal..
Place the roast on the grill and cover it...I usually let it cook for about 2 1/2 to 3 hours...
If you try it, let me know what you think..It always comes out great when I do it...Took some trial and error though...
"Your character is what you are, your reputation is merely what others THINK you are." ~Wooden~