Make a kneading dough from the dough ingredients and refrigerate for 1 hour.
Beat egg whites with sugar until stiff.
Roll out the dough thinly on a floured work surface and cut out small, round circles, place on a baking sheet lined with baking paper, brush with some egg white and sprinkle with nuts or almonds.
Bake lightly at approx. 150 ° for approx. 12 minutes.
Spread jam on the bottom of the cookies and put 2 cookies together.