Mix eggs, milk, vanilla sugar, salt and flour with the whisk of the hand mixer to a smooth dough. Cover and let rest for about 20 minutes. In the meantime put cream, sugar and egg yolks in a pot and mix well.
Heat over medium heat while stirring continuously (must not boil) until the mixture thickens. Remove from the heat and allow to cool slightly. In the meantime peel the oranges so that the white skin is completely removed.
Remove the fillets with a sharp knife between the parting skins and let them drip off on kitchen paper. Stir mineral water into the dough. Heat clarified butter in portions in a pan (base 16 cm Ø), bake 4 thin pancakes one after the other until golden brown.
Fold the quark into the cooled down sugar egg mass. Place the pancakes in 4 ovenproof portion moulds and fill with the quark mixture. Spread orange filets on top. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 10-12 minutes.
In the meantime, roast the flaked almonds in a pan without fat until golden yellow, take them out. Take the curd pancakes out of the oven. Sprinkle almond flakes over it and dust with icing sugar.