Step 1

Preheat the oven to 350F and grease a 9x13 baking pan (or you can use a 9 inch springform pan). Set aside.

Step 2

Peel, core and chop the apples. Set aside.

Step 3

Attach the whisk attachment to your stand up electric mixer (or handheld electric mixer). Beat the eggs and sugar on high for about 2 to 3 minutes, until light yellow, thickened and about triple its size.

Step 4

Lower the speed to low and beat in the vanilla and flour.

Step 5

Quickly mix the baking soda and vinegar and add it to the batter. Mix batter gently.

Step 6

Arrange the chopped apples on the baking pan. Then pour batter over the apples.

Step 7

Bake for about 30-35 minutes (or 55 to 60 minutes if using a cake pan).