01 -
Combine diced apples, granulated sugar, cornstarch, ground cinnamon, and a splash of water in a saucepan over medium heat. Cook until apples soften and mixture thickens, about 5 to 7 minutes. Remove from heat and let cool.
02 -
Mix ground cinnamon with white sugar in a small bowl and set aside for layering.
03 -
Preheat oven to 350°F (175°C). Butter a 9x13-inch baking pan thoroughly.
04 -
In a large bowl, beat unsalted butter and granulated sugar together until light and fluffy, about 3 to 5 minutes.
05 -
Blend in cooled apple mixture, pure vanilla extract, and eggs until smooth and homogeneous.
06 -
In a separate bowl, whisk together flour, baking powder, baking soda, kosher salt, and ground cinnamon.
07 -
Alternate adding dry ingredients and Greek yogurt to wet mixture, stirring gently until just incorporated.
08 -
Pour half the batter into prepared pan; spread apple mixture evenly over it. Sprinkle half the reserved cinnamon sugar over apples. Cover with remaining batter and finish by sprinkling remaining cinnamon sugar evenly on top.
09 -
Bake in preheated oven for 35 to 40 minutes until a toothpick inserted in the center comes out clean or with minimal crumbs.
10 -
While baking, whisk together powdered sugar, milk, and vanilla extract until smooth. Adjust milk quantity to achieve desired consistency.
11 -
Upon removal from oven, pierce warm cake surface with a toothpick or skewer and pour glaze over the top to allow absorption. Let cool slightly before serving.