To prepare the cake, make sure that the butter is not too hot and that the milk is at room or even lukewarm temperature. Separate the egg whites from the yolks and beat the egg whites with white vinegar into hard snow.
Add sugar to the yolks and whip until creamy, then stir in the butter.Put flour, baking powder in a bowl and mix and add to the yolk mixture.Then slowly stir in the milk (which should not be cold).
Finally, gently add in and stir the egg whites and pour everything into a baking tray (in the size of 31x23 cm) with baking paper. Arrange the cherries, previously drained, on top of the batter by hand. Bake at 160 degrees Celsius for 1 hour and 15 minutes.Then let the cake to cool down. Sprinkle with powdered sugar if desired, right before serving.