Worcestershire ...
Repeat after me...Woos Ter Sher....that's how you pronounce it!
GOD BLESS YOU DAVE FROM DENVER!! This is the link to the sauce recipe I was looking for myself a few weeks ago, but could not find. Nobody on this board could help either. (Note to self: quickly printing this out and putting shortcut to recipe on my favorites).
As Dave indicated, this recipe is VERYYYYYYYYYYYYYYY vinegary. Good, but very acidic. I would strongly recommend trying it because it's fabulous, but I would cut the vinegar in 1/2 unless you like a very acidic sauce. Otherwise, it's the best I've ever had.
Thanks!