A timeless Austrian spiced tart featuring a rich ground hazelnut and almond shortcrust pastry, filled with tart redcurrant or raspberry preserve under an intricate lattice.
Pastry: Pulse ground nuts, flour, spices, sugar, and cold butter until crumbly. Add egg yolk and lemon zest to form a rich dough. Chill for 1 hour.
Assembly: Press two-thirds of the dough into a 22cm fluted tart tin. Spread the tart fruit preserve evenly over the base.
Lattice: Roll remaining dough into thin strips and arrange in an authentic diagonal lattice over the jam. Border with flaked almonds.
Baking: Bake at 180°C (160°C fan) for 35-40 minutes until golden and crisp. Dust with icing sugar when cool.