Anonymous wrote:I think the best option for freshness would be to assemble it the night before and bake it the morning of before you head over. Then put it under the host's broiler to brown and crisp the crust immediately before serving (if there is a broiler/high heat/no foil step in your recipe skip that step until you're at the host's house). I think a fresh crust adds a lot, and if it was baked the same day and not refrigerated, the broiler should get it warm enough without having to bake it again.
It would taste slightly better if you baked the whole thing there but if I were hosting Thanksgiving and a guest asked to use my oven for an hour I would fantasize about killing her.

Anonymous wrote:Also, would you mind posting your recipe? I'm looking for an addition to the usual pies.
Anonymous[b wrote:]I think you can make the whole thing in advance and then reheat. [/b]
If you want to be super-fresh and extra fancy, you could cook the main part in advance and then take the crumble topping separately packaged, and put it on before you heat it up while you're there. But personally, I think that's a lot of bother--I'd just advance the whole thing and then reheat.
Most people are going to put ice cream or whipped cream on it anyway, so they're not going to notice your super-fresh crumble topping.