In a large bowl, whisk the eggs and sugar until light and fluffy, about 4 minutes. Continue whisking and add in your sour cream, oil and vanilla extract.
In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon, sea salt and nutmeg.
Add the flour mixture and milk alternately to the sugar-egg mixture, ending with the milk. Fold the apple mixture into the batter in as few strokes as possible. Pour of the batter into the prepared pan. Gently tap the pan on the counter several times to release any trapped air bubbles.
Bake for 35-40 minutes in the center of the oven or until a toothpick pressed into the center of the cake comes out clean. Let cool for 50 minutes in the pan then remove (using the excess parchment paper to pull it out of the pan) onto a rack to finish cooling.