Preheat your oven to 350°F and grease a round 9" cake pan. I recommend using a springform pan.
Peel the apples and thinly slice them.
Toss the apples in lemon juice and set aside.
In a large bowl, add in your dry ingredients: flour, salt, baking soda, cinnamon, and nutmeg. Set aside.
In a medium bowl using a hand mixer, mix the eggs until frothy.
Add in both the white and brown sugars and mix together for about a minute.
Add in the vegetable oil and vanilla extra and mix until combined.
Sift the dry ingredients into the wet ingredients in thirds. Sift a third of the dry ingredients, give it a mix and then repeat the process 2 more times until all of the dry ingredients are mixed in with the wet ingredients.
Divide the dough into thirds, and take the first third of the dough and flatten it in the cake pan.
Take the apples and lemon juice mixture and place half of it on top of the dough, spreading it out evenly.
Repeat the layering process one and a half more times.
From bottom to top, your layers should be dough, apples, dough, apples, dough.
Bake for 55 minutes until golden brown.