Preheat your oven to 350°F (175°C) and line a muffin tin with paper liners.
In a large bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, ground ginger, and nutmeg.
In another bowl, combine the grated carrots, vegetable oil, brown sugar, granulated sugar, eggs, and vanilla extract.
Pour the wet ingredients into the dry ingredients and mix until just combined.
Divide the batter evenly among the muffin cups.
Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
Let the muffins cool in the tin for 5 minutes, then transfer to a wire rack to cool completely.