• Melt butter in small saucepan.
• Put flour, baking powder, salt, sugar, whole egg, yolk, orange zest and melted butter in bowl. Mix with wooden spoon until combined.
• Preheat oven to 180°C.
• On floured work surface, or between 2 sheets of baking paper, roll out dough until it's 5mm thick.
• Using a round cookie cutter or a glass, cut out a hollow disc from the dough. Use the rest of the dough to cut out biscuits in the shape of your choice.
• Place cut-out cookies on parchment-lined baking sheet. Prick cookies with fork. Bake for 10 to 12 minutes.

Royal Icing

• Beat egg white with icing sugar. Use food colouring of your choice to colour icing. Use the Royal Icing to decorate cookies and as a "glue" to stick individual cookies to the wreath.