Lamingtons

Bahan-bahan (15 porsi)

• 125 g / 4.5 oz unsalted butter (, softened)
• 1 cup (220g) caster sugar
• 1/2 tsp vanilla extract
• 3 eggs (, room temperature)
• 1 3/4 cups (260g) flour (, plain/all purpose, sifted (Note 1))
• 3.5 tsp baking powder
• 1/2 cup (125 ml) milk ((low or full fat))
• 4 cups (480g) icing sugar ((confectionary sugar), sifted)
• 1/3 cup (22g) cocoa powder
• 1 tbsp (15g) unsalted butter
• 150 ml (1/2 cup + 2 tbsp) boiling water
• 3 - 4 cups desiccated coconut
• Strawberry jam
• 1 cup (250 ml) cream
• 1 tbsp white sugar