In the bowl of a standing mixer (or in a large bowl if you are using a pastry cutter or a fork), mix flour and salt together.
With your mixer on low (or with your pastry cutter/fork), work the butter into the flour mixture (a little at a time) until the mixture resembles coarse crumbs.
Tuck the extra 1/2” of dough underneath the dough (this makes a thick outer crust edge), then crimp the edges of your pie.
Turn the oven down to 375 degrees and bake for a remaining 40-45 minutes, or until the top is golden brown and the filling is starting to bubble. (If the pie edges start to brown too quickly, tent a piece of foil over the top of the pie.)
*You may substitute lemon juice and lemon zest for the orange zest/juice.