Makes 1 loaf: Plain Flour (170 g) Wholemeal Flour (170 g) Salt (1/2 tsp) Bicarbonate of Soda (1/2 tsp) Buttermilk (290 ml) 1) Preheat the oven to 200C/400F/Gas 6. 2) In a bowl mix the flour, salt and baking soda. 3) Add the buttermilk, mixing well with the aid of a fork. 4) Turn onto a lightly floured surface and knead briefly. 5) Form into a round and flatten the dough slightly before placing on a lightly floured baking sheet. 6) Cut a cross on the top and bake about 30 minutes.