Line two baking trays with baking paper. Sieve 250 g icing sugar. Beat the egg whites and 1 pinch of salt until stiff with the whisks of the mixer, gradually adding icing sugar. To coat the stars, fill 6-8 tbsp. of beaten egg white into the freezer bag.
Mix cinnamon and almonds, fold into the remaining beaten egg white.
Roll out the dough on a work surface dusted with icing sugar to a thickness of about 1/2 cm. Cut out stars in different sizes and shapes, dip the cutters in flour from time to time, knock off the flour.
Rest of dough knead again and again, roll out and cut out.
Preheat oven (electric cooker: 150 °C/circulating air: 125 °C/gas: level 1). Place stars on the plates. Cut off a small corner of the freezer bag. Spray egg whites on the stars and spread. Decorate with walnuts if necessary.
Bake in the oven one after the other for about 15 minutes. Let them cool down. Cinnamon stars keep for 2-3 weeks with an apple slice in the cookie tins.