05In a large bowl, mix together the mashed bananas, brown sugar, canola oil, and eggs with an electric mixer for 1 minute.
06Sift together the all-purpose flour, whole wheat flour, baking powder, baking soda, salt, and ground cardamom; stir into the egg mixture with a spoon until well blended.
07Stir in the walnuts and the rum soaked raisins last.
08Pour the batter into the prepared pan.
09Bake in the preheated oven for 50 to 60 minutes, or until a toothpick inserted comes out clean.
10Allow bread to cool slightly before removing from the pan.