...between drowned in gravy then immediately eaten, and sitting in gravy to become leaden! I'd heard it was difficult to make but never once had a problem with the BHG version. It always turns out the way it should.

I've never seen frozen Yorkshire pudding in an American supermarket, even a huge supermarket. It's conceivable that you might be able to find it at a specialty place like Trader Joe's, or at one of those gourmet supermarkets where they sell a lot of ethnic foods.