Beat egg whites with salt until very stiff. Sprinkle powdered sugar with vanilla sugar. Put 1/3 of the mass to one side.
Mix the rest of the mixture with the flour, almonds and cinnamon. Shape walnut-sized balls. Place on a baking sheet, place a swab on the meringue mass and place an almond on top. Let dry for 2 hours at room temperature. Bake at 125 ° C for 20-25 minutes.