I have been making simple apple pie, and I can't seem to get it the way
my mother used to make it.

It always comes out to dry. My mother's apple pie used to have some
delicious liquid with it, and I can't figure out how to do it.

My problem is with the filling. I use:

Two or three fresh apples
Apple pie filling from a can
Sugar
Corn starch.

What might I be doing wrong?

Thanks for your help!

Mordechai Housman