currymonster, that's definitely not the one I mean. The daag though is open to interpretation, just like the base sauce, so you're going to get good ones and bad ones. The only point I'm really making is that there were daags around well before the BIR and there are daag recipes that look remarkably like base sauces, therefore the BIRs did not invent the base sauce technique. It's a housewives trick for making a quick curry.