In a blender fitted with a blade attachment add the flour, cream of tartar, bicarbonate of soda, cornflour, salt, and sugar. Blitz to blend.
240 g self raising flour, ½ tsp cream of tartar, ¼ tsp bicarbonate of soda, ¼ tsp maizena, Pinch of salt, 2 tbls sugar
Add butter and blend until coarse breadcrumbs form. Add the buttermilk and egg together. Pour into breadcrumb mix and blend until dough comes together.
80 g cold butter, 1 egg, 120 g buttermilk
Tip dough onto counter and pat out to about 3 cm thickness
Optional: fold the dough in half and roll out again. This gives a laminated effect that is used for strawberry shortcake. This can be repeated 2 more times and put in fridge to cool down before baking.
Use a 6 cm cookie cutter to press out the scones - do not twist
Place the scones in the hot cast iron pan and bake for 15 minutes or until golden blonde
Serve with your favourite jam and whipped cream