Taylor Swift's Chai Sugar Cookies

Ingredients

• 225 g butter
• 250 g flour
• 100 g sugar
• 50 g icing sugar
• 1 egg (large)
• 1 tsp vanilla extract
• 1/2 tsp baking powder
• 1/4 tsp salt
• 1 tsp chai spice mix
• 130 g icing sugar
• 30 ml milk
• 1/2 tsp vanilla extract
• 1/2 tsp chai spice mix
• 1 1/2 tsp ground cinnamon
• 1 tsp ground ginger
• 1/2 tsp ground cardamom
• 1/2 tsp ground all spice
• 1 pinch pepper
• 1/4 tsp ground nutmeg
• 1/4 tsp ground cloves