How to cook
Remove the pits from the sour cherries. Sprinkle them with the sugar and leave them for about 30 min. to release their juice.
Sprinkle with sugar. Roll the 2 ends toward the middle and wrap into a roll. Arrange them in a suitable oven dish with a nonstick bottom that you've smeared with butter.
Bake in a moderately heated oven until golden. While still warm, pour the juice from the sour cherries over the fruit phyllo pastry. Sprinkle with powdered sugar and let it cool.