Boston Bun

Bun

• 280 g lukewarm water
• 5 tsp dried instant yeast
• 560 g baker's flour
• 1 tsp sea salt
• 2 tsp milk powder
• 2 tsp bread improver
• 65 g caster sugar
• 45 g salted butter softened
• 100 g sultanas
• 100 g currants

Icing

• 150 g Copha® room temperature
• 300 g icing sugar
• 80 g water
• 10 g natural vanilla extract
• 6 tbsp desiccated coconut