two biscuits, sandwiched together with jam, a hole or small shape cut out of the top one, so that the jam glints beckoningly through. But the Linzer cookie is the extravagant Austrian Christmas ...

Baking a batch of these easy Christmas biscuits is a fun way ... If making tree decorations, punch a small hole in the biscuit using a wooden skewer as soon as they come out of the oven.