01 -
Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan. In a small bowl, toss your chopped apples with 2 teaspoons of cinnamon until they're all nicely coated. Set aside.
02 -
In a medium bowl, whisk together the all-purpose flour, baking powder, and salt. Whisking helps to aerate the flour and combine everything evenly without needing a sifter.
03 -
In a large bowl or the bowl of a stand mixer, beat the softened unsalted butter and packed light brown sugar on medium-high speed until the mixture is light, pale, and fluffy, about 3-4 minutes. Scrape down the sides of the bowl as needed.
04 -
Add the room-temperature eggs one at a time, beating well after each addition until fully incorporated. Mix in the vanilla extract.
05 -
With the mixer on low speed, add the dry ingredients in three additions, alternating with the milk in two additions, beginning and ending with the dry ingredients. Mix only until the flour is just barely combined—do not overmix!
06 -
Gently fold the cinnamon-coated apples into the batter with a rubber spatula. Pour the batter into your prepared pan and spread it into an even layer. In a small bowl, mix the 1 tablespoon of sugar and 1/2 teaspoon of cinnamon for the topping and sprinkle it evenly over the batter. Bake for 40-50 minutes, or until a toothpick inserted into the center comes out clean. Let it cool in the pan for 10-15 minutes before inverting onto a wire rack to cool completely.