This is an easy apple pie recipe using frozen pie crust. Peel and slice apples, mix with granulated sugar, and sauté in butter until softened. Let it cool slightly, then chill thoroughly in the refrigerator. Next, roll out the frozen pie crust with a rolling pin and line a pie tin with it. Fill generously with the chilled apple filling. Cut the remaining pie crust into strips and weave them into a lattice pattern, trimming any excess dough. Finally, brush the surface with a mixture of egg yolk and milk, and bake in a preheated oven at 170°C for 40-50 minutes. The result is a delicious, authentic apple pie with a crispy crust and a perfect balance of sweet and tart apple compote. Even beginners can easily enjoy this authentic taste.