With red apples and oats, very delicious, very natural

Ready to start sharing the process of this delicious dessert based on red apples.
This dessert is made in two phases which I detail below

For the base

1 1/2 cup flaked oatmeal

1/2 cup oat flour

1/3 cup oil

1/2 teaspoon cinnamon

1/3 cup hot water

2 tablespoons sugar

For the filling:

1 apple, peeled and sliced

2 cups of water at room temperature

4 tablespoons corn starch

3 tablespoons sugar

1 tablespoon vanilla (optional)

Here is the detailed procedure

by mercmarg