I was in need of a worsteshire sauce replacement and used this recipe. I only changed one ingrdient the rhubarb, as I didn't have any. I did though have some fresh cranberries on hand and used a couple of handfulls of those since they to are tart and make a nice red color. Worked out great! Thanks so much! Oh, and I pureed it first and then cooked.
Oh! I forgot...I put a little red food coloring in to give it a more rhubarby color...my rhubarb is the mostly green variety. francie