Prepare crust. Mix together crust dry ingredients. Cut shortening or butter into dry ingredients (your bowl should be full of small clumps, when finished). Add Beaten egg and mix well. Add milk 1 tablespoon at a time until mixture holds together (add additional milk is necessary). Use a rolling pin to roll dough out to approximately 1 1/4 times the size of pie pan. Place dough in pan and finish edges. See the related links below for more detailed pie crust instructions.

Once your crust is neatly in the pie pan, use a fork to prick holes in the dough (this keeps it from puffing up while baking). Make sure to get the bottom and the sides with the fork. Bake crust for 15 minutes or until beginning to brown. Remove from oven and lower temperature to 325°F.

While crust is baking, prepare filling. Whisk together all filling ingredients, except butter, in a heavy saucepan over medium heat. Use whisk to stir constantly until filling begins to boil (about 15 minutes). Filling should be fairly thick at this point and it will continue to thicken as the process continues. Remove filling from heat and Whisk in butter. Continue stirring until butter is completely melted. Pour filling into Baked crust.