Drain the morello cherries. Cream butter and diabetic sweetness. Stir in eggs one after the other. Mix flour, almonds, baking powder and cinnamon. Alternately stir the flour mixture with the milk into the egg cream. Fold in the cherries.
Put the dough into a greased pancake tin (approx. 1 litre capacity). Bake the cake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for about 1 hour. Let the cake cool down a little. Then turn out and let it cool down completely. Chop the chocolate and melt with coconut oil over a warm water bath. Spread evenly over the cake and leave to dry