Pre-heat the oven to 180°C bake (160°C fan-forced). Grease and line with baking paper a 20cm or 23cm cake tin (6 cm deep). Sift flours, spices and soda into a large mixing bowl.
Add the remaining ingredients and stir with a wooden spoon until just combined, don’t beat. Pour the cake mixture into the prepared tin and smooth the surface.
Bake for 1 hour or until cooked (when a skewer inserted into the centre of the cake comes out clean). Remove from oven, cool for 10 minutes, then remove from the cake tin and peel away the paper. Swirl icing over the cake once cooled.
Cream Cheese Icing
Beat the butter and icing sugar together until combined. Add the cream cheese, and beat until combined, then beat mixture on high speed until light and fluffy.