Preheat and Prepare: Preheat your oven to 350°F (175°C). Roll out the pie crust to fit a 9 x 13-inch baking dish. Gently place the crust in the dish, crimping the edges for a homemade look, and set aside.

Mix the Filling: In a bowl, combine the sour cream, ground cinnamon, and eggs. Whisk them together until smooth.

Assemble the Cake: Spread the apple pie filling evenly over the pie crust. Then, pour the sour cream mixture over the apple pie filling, using a spatula to gently spread it across the filling.

Bake: Place the baking dish in the oven and bake for 40 minutes, or until the crust is golden and the filling has set.

Prepare the Glaze: While the cake is cooling, mix confectioners’ sugar with milk to create a smooth glaze.

Glaze and Serve: Once the cake has cooled, drizzle the glaze over the top. Let it set for a few minutes, then slice and serve.