Step 2
Whisk all-purpose flour, whole-wheat flour, cinnamon, baking powder, baking soda and salt in a medium bowl. Beat oil, brown sugar, granulated sugar and vanilla in a stand mixer fitted with the paddle attachment until starting to lighten in color, about 2 minutes. Slowly add eggs, one at a time, beating until well combined before adding the next. Add the dry ingredients and mix just until incorporated. Add carrots and mix until just combined. Scrape the batter into the prepared pan.