Boston bun - Better Homes & Gardens Australia

Ingredients

• 1 cup warm mashed potato
• 1 cup caster sugar
• 2 cups self-raising flour
• 1 tsp ground cinnamon
• 1 tsp mixed spice
• 1 cup sultanas
• 1 cup milk
• Extra self-raising flour, to dust
• 2 Tbsp desiccated coconut
• Soft butter, to serve (optional)
• Icing
• 30g butter, room temperature
• 1 cup pure icing sugar mixture
• 1 Tbsp warm milk
• 2 tsp vanilla extract
• Pink food colouring (optional)