Ingredients: 430g Plain Flour 70g Fine Sugar 1 tsp Salt 2 1/2 tsp Baking Powder 1/2 tsp Baking Soda 170g Unsalted Butter 200ml Buttermilk* 1 Egg (to make eggwash) or 1 tbsp Cream for brushing   Method: Preheat oven to 200°C. Combine the flour, sugar, salt, baking powder and baking soda in a large bowl. [...]