Ok, here is how I do roast ... no expert BUT DH likes it

Take your meat, and lightly dust the top with flour (not much, just lightly) Take a knife and make little slits in the meat and push in some peeled, cut garlic. Salt and Pepper to taste. Then place in ovenbag (or you can cover the whole piece with foil - shiny side inwards) with two tablespoons of water. Place in oven dish. Place in 180 degree oven for up to two hours. That would do it.

Hope it comes out gorgeous ... after reading this, I'm feeling like roast too