Monogrammed cupcakes

Ingredients

• 200g unsalted butter softened
• ½ cup caster sugar
• 4 eggs
• 2½ cups plain flour
• 2 baking powder
• 1 cup milk
• 1 tbsp vanilla extract
• 50g unsalted butter for icing
• 2 cups icing sugar for icing, sifted
• 2 tbsp milk for icing
• 700g ready-to-roll fondant icing from cake decorating shops
• gel or paste colouring blue, pink or yellow
• icing sugar for dusting
• 1 cup white chocolate pieces for initials