Lightly grease the hollows of a mini bundt pan (6 hollows of 100 ml). Mix the butter, sugar, vanilla sugar and salt until creamy. Stir in 2 tablespoons of lemon juice. Mix in the eggs one by one. Mix the flour and baking powder, stir in briefly. Pour half of the batter into the molds. Bake in the preheated oven for 15-20 minutes. Let it cool down a bit and turn it over. Bake the rest of the dough in the same way. Let cool on a wire rack.
Mix together powdered sugar and 5 tablespoon lemon juice. Brush the cakes with it and let the icing dry a little. Sprinkle with tinsel, pearls or sprinkles and let the icing dry completely.