Combine cherries, lemon zest, lemon juice, sugar, cornstarch, flour, vanilla and let sit while you make the dough
While the cherries marinate, mix Crisco, flour, salt, and ice water and mix together with a pastry cutter or two knives until dough is mixed well
Once dough is mixed well, cut into two sections. Roll out first section for bottom of pie dish
Fill pie dish with cherries, add butter, and roll out the second dough ball. Lay on top and seal the ends together with your fingers. Poke holes in pie crust and bake
Bake for 30-40 minutes at 400 degrees