Americans know it as Apple Crisp, because the US has to perpetuate the myth than American English is anything but a bastardisation of an existing language and therefore have different words for the same thing.
And yes. Hot Ambrosia® custard, not ice cream, and not Birds®. Just as I was served at school dinners (which somehow bow are called lunch).
Gotta have lashings of Bisto gravy, yorkies and good ol' British Maris Piper potatoes too. Occasionally carrot turnip mash if you're feeling posh. Cauliflower and broccoli if that's your thing. Served by Lynda Bellingham.