Cut butter into small cubes. Cut the vanilla pod in half lengthwise and scrape out the pulp. Knead butter, sugar, vanilla pulp, salt, egg yolk and almonds with the dough hooks of the hand mixer. Add flour and knead with your hands to a smooth dough. Form short pastry into a ball, wrap in foil and chill for about 1 hour.
Knead the short pastry briefly and roll out to a thickness of approx. 2 mm on a floured work surface. Cut out circles (5 cm Ø) and place them on 2 baking trays lined with baking paper. Press almond flakes into the dough circles. Bake the trays one after the other in a preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for about 6 minutes. Take out and let cool on a cake rack
Waiting time 1 hour