Medieval Apple Pie Recipe Question

I'm planning to make that apple pie and I have a pretty silly question (because I don't usually bake...or cook...I focus on the eating part as much as possible).

Max mashed the apples & pears with a mortar & pestle or suggested using a food processor. I have neither of those, would a handheld blender be a tragic choice?

Wish my victims* luck and a strong constitution.

*friends