Beat the eggs until frothy. Stir in the sugar and vanilla sugar. Mix flour and baking powder and add. Stir in 2 cups of buttermilk. Place the dough on a well-greased baking sheet. Mix coconut flakes and sugar and sprinkle on top.
Baking time: 20 minutes at 200 ° C on the middle rack.
Bring the cream and butter to the boil and pour over the finished cake.