Preheat oven to 190ยบ C.
Grind biscuits and hazelnuts to a medium texture in a food processor or blender
Mix ground almonds and sugar in to ground amaretti and nuts. .
Melt chocolate, milk and butter and stir until smooth
Pour into the ground amaretti and nuts.
Mix well.
Add liqueur and cream to mixture.
Lightly grease a shallow 26 cm tart or pie pan, preferably with a removable bottom.
Roll out half the dough to about 3 mm.
Transfer to the pie pan.
Trim edges.
Prick bottom with a fork.
Spread filling evenly in the pastry shell.
Bake for 35 minutes, or until the crust is golden brown and filling has puffed up.
cool to room temperature.
Decorate the tart with almond halves