Drain the peaches. Cream fat, sugar, vanilla sugar and salt. Stir in eggs bit by bit. Mix flour and baking powder and add to the fat egg mixture. Add advocaat and mix well.
Put the dough on a greased fat pan (32x37 cm) and smooth it down. Press the peaches into the dough with the convex side down. Sprinkle hazelnut leaves on top and bake in a preheated oven (electric: 200 °C/ gas: level 3) for 25-30 minutes. Let cool on a cake rack and dust with icing sugar. Results in approx. 16 pieces