Linzer Cookies

In its wildest dreams, a jammy dodger could never aspire to the melting tenderness and celestial lightness of the Linzer cookie. The idea is the same: 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 version, the dough rich and short with ground toasted hazelnuts.

I buy skinned hazelnuts that have already been toasted, but it’s easy enough