Mix all ingredients for the short pastry to a dough.
Wrap in cling film and place in fridge for about 30 minutes.
Roll out the dough on floured surface 3 mm thick. Cut out with a cookie cutter. The half of it with holes.
Place on baking tray with baking paper.
Bake in preheated oven at 180° C for about 8 minutes.
Sprinkle the biscuits with holes with icing sugar. Spread jam on the others and stick together.