For the Cake• 2 ½ cups all-purpose flour (315g)• 1 cup granulated sugar (200g)• 1 cup light brown sugar packed (200g)• 1 ½ teaspoon baking soda• 1 teaspoon baking powder• 1 teaspoon salt• 2 teaspoons ground cinnamon• ½ teaspoon ground nutmeg• 1 cup canola or vegetable oil (235ml)• ½ cup unsalted butter melted (113g)• 4 large eggs room temperature• 1 Tablespoon vanilla extract• 3 cups grated carrots (340g)• 1 cup chopped walnuts or pecans (125g)
Add your canola oil and melted butter and stir well (batter will be pretty stiff and thick at this point, I usually use an electric mixer or my stand mixer to combine everything nicely).
With mixer on low, gradually add powdered sugar until ingredients are completely combined (be sure to scrape the sides and bottom of the bowl with a spatula).