A pie dough comes together exactly like a biscuit only there is very, very little liquid and no leavening involved. Other than that, the same rules apply. My best advice: handle the dough as little as possible.
Alton BrownI am firmly in the lard camp. It must be what we call leaf lard, which is a specific kind of lard that resides around certain internal organs in the pig.
Alton Brown