no a-1 on prime rib.. fuck that a tiny bit of horse radish is hella bomb though. I like the 1 part horseradish 1 part sour cream on the baked potato on the side of a prime rib too. I had that for xmas dinner but girls twakball aunt made it so it wasnt slappin. It was good but coulda been better..
If you go to house of prime rib and ask for a-1 i bet they will look at you crazy. That Au ju is wassup is for prime rib.
Really though A-1 is good for the cheaper steaks. if you get a nice filet mignon or any good cut that has been cooked right, then you don't need to put anything on it.