Defrost the raspberries. Separate eggs. Beat the egg yolks, 2 tbsp. lukewarm water, vanilla sugar and lemon zest until creamy
Beat the egg white and 1 pinch of salt until stiff. Let 4 tablespoons of sugar trickle in. Carefully fold the beaten egg white into the egg yolk mixture. Sift the flour on top and fold in carefully
Place the mixture in a large or 4 small flat greased, ovenproof dish. Bake in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 20 minutes
Meanwhile, puree the raspberries and 2-3 tablespoons of sugar. Wash mint and shake dry. Take the dumplings out of the oven, dust them thickly with icing sugar and serve immediately. Decorate with mint. Add the raspberries