Sauce: clean and cut the apples into small cubes. Put them in a saucepan with the sugar, butter and simmer for 30 minutes. Blend the composition in a blender or food processor.

Peel the apples, cut them into slices. Melt the sugar in the pan. Add the butter and cinnamon.

Roll out the dough. Arrange the apple slices in a round baking tray. Pour the sauce over it. Cover carefully with dough and place in the oven at 200 ° C for 25-30 minutes.

Remove the tart from the oven, place a plate on top of it and quickly turn it over on the plate.