Beat eggs with sugar, add yogurt, melted butter, the flour with baking powder and vanilla. From this mixture was removed 1 cup and to it add the chocolate. In a buttered baking dish Place 2 sheets on top poured the yellow mixture Arrange cherries and pour the cocoa. Gently stir with a fork both mixtures top put a crust and cake bake in a moderate oven. The finished cake pour the syrup optional - diabetes can and Ether, and may not be syrupy.