From the Waitrose Food Magazine!

Mix together a Tbs ground allspice, a Tbs coarsely ground black pepper, 1 Tbs freshly grated nutmeg, a tsp ground cloves,
a tsp ground cinnamon and a tsp ground ginger. This will make far more than required for this recipe, but it will keep
for a few weeks in an airtight container for the next time you want to make these delicious biscuits!

Beat 125 g butter at room temperature with 55 g caster sugar in a bowl, until pale and fluffy. Mix in 180 g plain flour
and a Tbs of the spice mix and knead until the dough is smooth. Roll out the dough on a floured surface until a little
under a cm thick and cut into squares or disks. Transfer to a baking tray and chill for 20 minutes. Bake in a 190°C oven
for 15 – 20 minutes, until golden, then cool on a wire rack and sprinkle with icing sugar when cooled.