Drain the plums in a sieve, collecting the juice. Stir 2 tablespoons of juice and starch until smooth. Boil up the rest of the juice and stir in the starch. Simmer for 1-2 minutes. Stir in plums.
Let the compote cool down.
Wash the raisins and dab dry. Separate eggs. Whisk egg yolks, vanilla sugar, 1 pinch of salt and 6 tablespoons of milk. Gradually stir in flour with 1⁄8 l milk. Stir in the raisins. Let the dough swell for about 10 minutes.
Beat the egg whites until stiff, adding 1 tablespoon of sugar. Carefully fold the beaten egg whites into the dough.
Heat butter and oil in a pan (approx. 24 cm Ø). Pour in the dough and bake at low heat until golden on one side. Cut into quarters with a spatula, turn and bake for another 3 minutes until golden, then tear into pieces.
Sprinkle with 1 tablespoon of sugar and lightly caramelise while tossing. Arrange Kaiserschmarrn with some compote. Dust with icing sugar. Add the rest of the compote.