Knead flour, fat, icing sugar and 1 egg yolk to a smooth dough and let it rest for about 30 minutes. Drain the raisins and sprinkle with rum. Simmer poppy seeds and milk for about 20 minutes. Add honey, vanillin sugar, raisins and almonds and mix. Let the poppy seed mixture cool down. Whisk remaining egg yolk and 1 tablespoon of cream.
Roll out the dough to a rectangle (20x21 cm), use a dough wheel to roll out rectangles (2x7cm), place on a baking tray covered with baking paper. Brush with remaining whisked egg yolk and bake in a preheated oven (electric: 200 °C / gas: level 3) for 12-15 minutes. Roast the flaked almonds in a dry pan. Whip the rest of the cream until stiff and fold into the poppy seed mixture. Remove cookies from the oven and let them cool on a cake rack. Pour the poppy seed mixture into dessert glasses, decorate with the flaked almonds and serve with the biscuits