Preheat oven to 180℃/356℉. Grease a loaf pan with butter, and line with baking paper.
Sift flours into bowl. Mix in the other dry ingredients.
Mix all wet ingredients in separate bowl.
Make well in the dry ingredients. Add wet ingredients and stir thoroughly.
Put in pan and bake for 45 minutes or until a skewer comes out clean. Allow to rest in the pan for ten minutes or so, before turning out onto a wire rack.