Flaky, all-butter golden pastry filled with a delicately spiced sweet filling, baked until crisp and aromatic.
Beat the ghee and icing sugar for 5 minutes until pale and fluffy; beat in the orange blossom water.
Work in the flour and mahlab just until a soft, smooth dough forms; do not overmix.
Chill the dough for 30 minutes until firm enough to handle.
Roll tablespoons of dough into balls or diamonds and place on parchment-lined trays; press a pistachio half into each.
Bake at 150C for 18-22 minutes until set but still pale; the cookies must not brown.
Cool completely on the trays until they crumble and melt in the mouth.