Kim-Joy's Christmas Spiced Biscuits recipe - The Great British Bake Off

Ingredients

• 180g unsalted butter
• 150g dark muscovado sugar
• pinch of salt
• 75g golden syrup
• 450g plain flour
• 1 tsp bicarbonate of soda
• 4 tsp green cardamom pods, husks removed and seeds ground; or 2 tsp ground cardamom
• 2 tsp ground cinnamon
• ½ tsp ground nutmeg
• ¼ tsp ground cloves
• 1 egg yolk
• 1 tbsp whole milk
• 150g ready-tempered pearl and silver nibs, or clear hard-boiled mints
• silver edible dust
• 20g pasteurised egg white
• 110g icing sugar
• blue food-colouring gel