Carefully heat the crème fraîche, sugar, vanilla sugar and butter in a small saucepan while stirring constantly. Then take the saucepan off the stove, pour the cream into a bowl and let it cool down.
Mix the flour with baking powder, sugar and lemon zest and mix with the remaining dough ingredients to form a smooth dough. Spread in a greased and floured springform pan. Spread the cherries evenly on top. Bake in a preheated oven (convection oven 175 ° C) for about 10 minutes.
Remove, spread the cream on top, sprinkle the cake with flaked almonds and bake for another 20 minutes at the same temperature.