In a large bowl, whisk the flour, baking powder, baking soda, ground spices and salt together until well combined.
1¾ cup (210 g) all purpose flour, 2 teaspoons ground cinnamon , 1 teaspoon ground ginger, ½ teaspoon ground nutmeg, 1 teaspoon baking powder, ½ teaspoon baking soda, ½ teaspoon salt
In another large mixing bowl, add the oil, granulated sugar, light brown sugar, eggs, sour cream and vanilla extract. Whisk the wet ingredients together until fully combine with no visible lumps. Stir the dry ingredients into the wet until just combined. Stir in the grated carrots and any other mix-ins until just combined.
¾ cup (180 ml) oil , ¾ cup (150 g) granulated sugar, ¼ cup (50 g) light brown sugar, 3 large egg, room temperature, ¼ cup (60 g) sour cream, room temperature, 2 teaspoons (10 ml) vanilla extract , 1½ cups shredded carrots