Whip the flour, sugar, buttermilk, eggs, vanilla sugar and baking powder. Drain the pineapple well, cut into pieces and fold into the batter.
Spread the mixture on a baking sheet. Sprinkle with the almonds and sugar. Bake the cake in the preheated oven for approx. 20 minutes at 200 ° C top and bottom heat.
In the meantime, heat the butter and cream and pour over the hot cake immediately after baking.