Line the bottom of your pie dish with one of your pie crusts.
In a mixing bowl add your peeled sliced apples. Add the lemon juice and stir ensuring all the apples are coated in the lemon juice. This will keep the apples from turning brown.
In another bowl, combine the sugar, cinnamon, nutmeg, allspice, vanilla, and flour. Mix well until all ingredients are thoroughly incorporated.
Pour the dry ingredients over the sliced apples. Mix thoroughly until all apples are coated in the mixture.
Pour the apple pie filling into the pie dish lined with a pie crust.
Cut the 3 tablespoons of butter into thin slices and place ontop of the apple pie mixture.
Drape the second pie crust over the pie. Trim the edges and using a fork or your finger close the edges. Use a knife to cut a design or vents in the top pie crust
In a small bowl add one egg yolk. (Do NOT add the egg white.) Add milk and whisk until thoroughly combined.
Using the pastry brush, brush the top pie crust with the egg yolk mixture
Bake at 375°F for 20 minutes. After 20 minutes turn the oven down to 350°F. Bake for an additional 60 minutes or until the pie is golden brown and bubbling. When baking you may need to place a baking sheet under the pie to prevent it from dripping in the bottom of your oven.