Mix all the ingredients for the dough in a bowl. Let cool in refridgerator for 2 hours. Roll out dough until 2 to 3 mm thick. Cut out cookies and bake in a oven at 180°C for 10 minutes. Spread jam on the cookies and put together like a sandwich. Heat the chocolate glaze in a bain-marie and cover half of each cookie sandwich. Let dry on a cake rack.