• Preheat the oven to 302 °F / 150 °C (top/bottom heat).
• Beat 6 Egg yolks with 1 ¼ cup Powdered sugar, 1.5 Pinches Salt, and 3 tsp Vanilla sugar using a hand mixer until foamy.
  6 Egg yolks, 1 ¼ cup Powdered sugar, 3 tsp Vanilla sugar, 1.5 Pinches Salt
• Fold in 1.5 tsp Rum and 2 ¾ cup Ground walnuts (almonds or hazelnuts) into the foamy mixture.
  1.5 tsp Rum, 2 ¾ cup Ground walnuts
• Fill the mixture into a pastry (piping) bag and create tiny mounds onto the baking tray lined with baking paper.
• Once a baking sheet is full, bake the cookies on the second rack from the bottom for about 20 minutes.

Optional

• If you have opted for the variant with Baking wafers, pipe the mass directly onto the wafers.
  Baking wafers

For decoration

• Add a walnut (almond or hazelnut) on top before baking.