01 -
Preheat oven to 350°F (175°C). Grease a 9 × 13-inch baking pan with nonstick spray or oil.
02 -
In a large mixing bowl, whisk together all-purpose flour, baking soda, baking powder, salt, ground cinnamon, and ground nutmeg until thoroughly blended.
03 -
In a separate bowl, whisk together brown sugar, white sugar, vegetable oil, eggs, and vanilla extract until smooth and well combined.
04 -
Pour the wet ingredients into the bowl with the dry ingredients. Stir gently until just incorporated; do not overmix.
05 -
Gently fold in the chopped apples to evenly distribute throughout the batter.
06 -
Transfer the batter into the prepared pan, spreading it into an even layer. Bake for 30 minutes or until a toothpick inserted in the center comes out clean.
07 -
Allow the cake to cool in the pan for at least 30 minutes before slicing and serving.