I gather there is a bit of controversy in England over Banoffi/Banoffee pie ... the controversy swirling around where it came from, etc. Apparently most of the credit is claimed by Nigel Mackenzie of the Hungry Monk in Sussex; however, on Ian Dowding's web site, there is a slightly different story. Mr. Dowding was the head chef at the Hungry Monk, and concludes that they didn't invent it in the strict sense of "invention," but helped it evolve. (It's an interesting story; you can read it at http://www.iandowding.co.uk.) In any event, this is Mr. Dowding's recipe for what he believes is the best version of Banoffi pie. Note that the long prep time includes time to make the toffee/caramel by boiling the cans of sweetened condensed milk.