It was on TV about a week or two ago. I think it was from the current season but I can't tell because our PBS station is sometimes way out of date. I told the Spouse not to bother scrambling to write it down because we could get it online. Yeah, right. Turns out it's blocked.
I know it had a small amount of cream and butter in it. The potatoes were not boiled in water, rather they were braised in the cream.