Makes 2 loaves
Sift baking powder, soda, salt and spices together with the white flour. Add the whole wheat flour, sift again. Add the sugar.
Beat the eggs until light and frothy and add the buttermilk and the butter, mixing well. Stir in the nuts.
Pour into 2 buttered and floured loaf pans (9×5×3) and bake in a preheated 325° oven for 1 hour.