Drain the cherries. Cut the fat into cubes. Mix 100 g diabetic sweetener, fat and salt with the whisk of the hand mixer until creamy. Stir in 4 eggs bit by bit. Add milk.
Mix flour with baking powder and fold into the fat egg mass. Put the dough on a greased fat pan (Jena baking tray approx. 35 x 45 cm) and smooth it down. Spread cherries on top. Stir sour cream, remaining eggs and diabetic sweetener until smooth.
Pour over the cherries. Bake in the preheated oven (electric: 200 °C/ gas: level 3) for 35-40 minutes. Let cool on a cake rack. Sprinkle with diabetic sweetener as desired.
Results in about 20 pieces.