They taste best when allowed to ripen for a few days I used different kinds of jams and they all do it, what could be a problem? Please do not use my images without prior permission. In my experience hazelnuts are more commonly used in the Linzertorte, while almonds are little more common in the Linzerkekse, but both are used interchangeably for either. This is an old Austrian family favorite. Remove one piece of dough from the refrigerator at a time. Here are some trip suggestions for you.