Ginger cakes with orange glaze

Ingredients

• 2/3 cup (100g) plain flour
• 2/3 cup (100g) self-raising flour
• 1/2 teaspoon bicarbonate of soda
• 2 teaspoon ground cinnamon
• 2 teaspoon ground ginger
• 1/2 teaspoon ground cloves
• 1 cup (220g) firmly packed brown sugar
• 2/3 cup (160ml) buttermilk
• 2 eggs, lightly beaten
• 100 gram unsalted butter, melted
• 1 cup (160g) icing sugar
• 1/2 teaspoon finely grated orange rind
• 1 tablespoon strained orange juice
• 2 teaspoon hot water