Separate the eggs. Beat the egg whites with a pinch of salt until very stiff. Then let the sugar trickle in. Carefully fold in the egg yolks and flour. The dough should be very fluffy and loose.
Using a teaspoon, place small heaps on a baking sheet lined with baking paper. Bake at 175 ° C for about 15 minutes.
After baking, brush the biscuits with the jam immediately. Then let it cool down. Cover the cooled biscuits with chocolate.