Preheat the oven to 200C. Line a baking sheet with baking parchment. Mix all the dry ingredients together in a bowl.

Make a well in the centre and then mix in the honey, treacle and buttermilk, working everything together lightly with your hands, until you have a loose, wet dough. With floured hands, shape the dough into a round and lift on to the lined baking sheet. With a knife or a wooden spatula mark a cross on the top.

Put into the oven and bake for 35-40 minutes, or until the loaf sounds hollow when tapped on the base. Transfer to a wire rack, drape a damp cloth over the top and leave to cool.