Mix butter with powdered sugar until thick and creamy, add egg and spices and continue to mix, then fold into the Abtrieb [the hazelnuts].
Pipe rings onto ungreased baking sheet with serrated star-shaped nozzle and bake at medium heat until light. Assemble two rings at a time with strawberry jam and lightly sugar over.
Tip: Stock up on high-quality spices – it pays off!