Preheat oven to 375℉ and line a muffin pan with papers or grease.
In a large bowl, whisk eggs and sugar together.
Whisk in oil, milk, sour cream, and vanilla. Set aside.
In a separate bowl, whisk the flour, baking powder, cinnamon, ginger, and salt together.
Add the dry ingredients to the wet, stirring until the flour is just combined.
Fold in the grated carrots and diced apple.
Divide batter evenly in the muffin tin.
Bake in preheated oven for 22-25 minutes, or until just baked in the centers.
Cool in pan for 3-4 minutes, then transfer to a cooling rack to finish cooling.
Store cooled muffins in an air tight container.