These dense, luscious apple cake squares are perfect for breakfast, brunch, snack or dessert! Use firm baking apples like Granny Smith. Leftovers can be frozen in pieces, and once thawed, can be eaten straight from the fridge or heated in the microwave or oven.
Preheat oven to 350-degrees. Line a 9×9 square pan with foil and apply butter or nonstick spray.
In a medium bowl, toss peeled and chopped apples with cinnamon and brown sugar.
In a separate bowl, combine the flour, baking powder, and salt.
In a larger mixing bowl, whisk together the white sugar, vegetable oil, sour cream/yogurt, and vanilla extract until it's smooth. Add the eggs.
Add the dry ingredients into the wet ingredients until everything is just mixed.
Pour half the batter into the ready pan. Sprinkle half the apples evenly over the top. Pour the remaining batter, smooth it out, then add the remaining apples.
Bake for about an hour. It will pass the toothpick test when done. Cool completely and store covered in the fridge.
OM NOM NOM!