anyone know where to get it?
Seeing that no one's posted an answer - there's a great recipe for butterscotch pudding in Wolfgang Puck's "Adventures in Cooking" (I think that's the title). It's very easy to make and as delicious as anything you'll get in a restaurant. If you want the recipe let me know and I'll dig it up if you can't find the book.
Try Trader Joe's. They had some in the fresh food cases a few weeks ago. A little sweet for my taste but good.