To get started, preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius) and lightly oil a 9x5 inch loaf pan with vegetable cooking spray. This will ensure that your cake doesn't stick and comes out of the pan with ease.
In a separate large bowl, sift together the flour, whole wheat flour, flaxseed, cinnamon, nutmeg, cloves, and baking soda. This will ensure that your cake has a perfectly blended dry mixture, which will make it rise and bake evenly. Mix the wet ingredients into the dry mixture until well blended.
Pour your batter into the prepared pan and bake in your preheated oven for about 40 minutes or until a toothpick inserted into the center comes out clean (but not necessarily dry). Set the cake aside to cool for 10 to 20 minutes before refrigerating overnight. This will allow the flavors to meld together and create a perfectly moist and delicious carrot cake loaf.