If I need to make this ahead of time, I will leave the crust and filing in the freezer, pulling it out to add the topping and then return it to the freezer. I then defrost it in the fridge before I want to serve it or letting it defrost in a cooler as I take it to share with others.
I've used the Vita-Mix and the Cuisinart food processor to make this, but we prefer the high power blender because it gives the filing a much creamier texture.
♥ Shelly