First you need to make the filling.
Peel the apples, clean them and grate on a coarse grater.
Transfer them to a pan on the stove, add sugar and cinnamon, then simmer for about 15 minutes.
During stewing, when the apples release their juice, add semolina to absorb the liquid.
When the filling is ready, leave it aside to cool.
In a mixing bowl, break whole eggs, add sugar and mix until the mixture is foamy.
Then pour the oil and mix briefly, as well as the milk.
At the end, add flour and baking powder and finally mix everything well to combine the ingredients.
Grease and flour a 13x8 inch baking pan.
Divide the biscuit mixture into 2 equal parts.
Pour half of the mixture into the pan.
Bake it in a preheated oven at 350 degrees F for 10 minutes.
After that, remove from the oven and arrange the stewed apples and smooth them.
Pour over the rest of the biscuit mixture and bake in an oven heated to to 350 degrees F for an additional 35 minutes.
Sprinkle the cooled cake with powdered sugar and enjoy.