01 -
Peel, core, and chop apples into small cubes.
02 -
Preheat oven to 180°C. Line a 23x23 cm baking pan with parchment paper.
03 -
In a large bowl, whisk together eggs, cooled melted butter, cinnamon, Greek yogurt, granulated sugar, milk, kosher salt, and vanilla extract until fully blended.
04 -
Add flour, baking powder, and baking soda. Whisk until nearly combined.
05 -
Fold in chopped apples until just combined with no visible dry flour. Do not overmix.
06 -
In a small bowl, combine melted butter, granulated sugar, and ground cinnamon; mix until uniform.
07 -
Spread cake batter evenly into prepared pan. Spoon cinnamon topping over batter and create swirls using a butter knife.
08 -
Bake for 45–50 minutes, or until a toothpick inserted in the center comes out clean.
09 -
Mix powdered sugar, vanilla extract, and milk in a small bowl until smooth and silky.
10 -
Drizzle glaze over warm cake as desired. Serve warm with tea or coffee.