Wash and drain the raisins. Separate eggs. Whisk the egg yolks, vanilla sugar, salt and 2/3 of the milk. Add flour little by little and stir in the rest of the milk. Beat the egg whites until stiff, adding 15 g sugar.
Carefully fold the beaten egg white into the dough. Heat 1 teaspoon butter and oil in a pan (approx. 24 cm Ø). Pour in the dough round from the edge to the inside, leaving a small hole in the middle.
Sprinkle raisins on the dough. Bake at low heat until golden yellow. Put 30 g butter in the hole and let it melt. Quarter the slices with a pallet, turn them over and bake from the other side until golden.
Then tear it into pieces with 2 forks. Sprinkle 1 teaspoon of sugar over it and let it caramelize a little while tossing. Dress the grist and dust it thickly with icing sugar. Cranberries taste good with it.