Flaky, all-butter golden pastry filled with a delicately spiced sweet filling, baked until crisp and aromatic.
Boil the sugar, 350ml of the water, the cream of tartar, and lemon juice until it reaches 115C on a thermometer.
Whisk the cornflour into the remaining 400ml water until smooth.
Whisk the slurry into the hot syrup and simmer over low heat, stirring often, for 40-50 minutes until thick, translucent, and pulling from the pan in one piece.
Off the heat, stir in the rose water.
Pour into a parchment-lined 20cm square tray and leave uncovered overnight to set.
Cut into small cubes with an oiled knife and toss in the icing sugar until no longer sticky.