1. Defrost the pie crust, pierce some small holes in the bottom with a fork, bake in the oven at 400F/200C for 10 minutes, take it out and let cool.
2. Peel and core 2 apples, cut into small cubes, and bubble with light salt water to prevent oxidation.
3. 1 apple peeled and cored, and pureed with a blender.
4. 1 apple, peeled and cored, cut into thin slices, soaked in salt water to prevent oxidation.
5. Put the puree, sugar, cinnamon powder and cornstarch in a small pot and stir well, cook until the sugar melts and let cool.
6. Stir in diced apples and chopped walnuts.
7. Pour into the pie and pave it flat.
8. Spread apple slices.
9. Preheat the oven to 400F/200C degrees, put the apple pie into the bake for 20 minutes, brush the apple slices with sugar water with a brush, lower the oven temperature to 350F/180C degrees and continue to bake for 30 minutes. You can brush the sugar water again halfway to prevent apples The slices are too dry.
10. The fragrant apple pie is out of the oven.
