Sift whole-wheat flour and baking soda together. Add Grace Vegetable Oil and Splenda and mix until light and foamy.
Fold in the eggs, mashed ripe bananas, butter milk, vanilla, soaked raisins and cashew.
Scrape batter into a greased loaf pan and bake at 180°C/350°F for 25-30 minutes or until a skewer inserted comes out clean.
Allow to cool before slicing.