Orange, rosemary and cinnamon biscuits
Preheat oven to 180°C. Place icing sugar, flour, custard powder, cinnamon, rosemary and orange rind in a food processor. Process until well combined. Add the butter and process until a dough forms. Turn dough onto a clean work surface and shape into a disc. Cover with plastic wrap and place in the fridge for 10 mins to rest.
Meanwhile, to make the cinnamon sugar, combine the sugar and cinnamon in a small bowl.
Line 2 baking trays with baking paper. Roll tablespoonfuls of dough into balls. Roll in cinnamon sugar to coat. Place on the lined trays. Use a fork to flatten slightly. Bake, swapping trays halfway through cooking, for 15-20 mins or until biscuits are golden. Set aside on the trays to cool.