Preheat your oven to 350°F (175°C) and prepare a 9-inch round cake pan by greasing it and lining the bottom with parchment paper.

In a medium bowl, whisk together 1 ½ cups of all-purpose flour, 1 ½ teaspoons of baking powder, and a pinch of salt.

In a large mixing bowl, beat together 2 large eggs and 1 cup of granulated sugar until pale and creamy. Slowly whisk in ½ cup melted unsalted butter, ½ cup whole milk, and 2 teaspoons vanilla extract.

Gently fold the dry ingredients into the wet mixture until just combined; do not overmix.

Fold in 3 cups of thinly sliced apples until evenly coated.

Pour the batter into the prepared cake pan and bake for 40–45 minutes, until golden and a toothpick comes out clean.

Allow the cake to cool in the pan for about 10 minutes before transferring to a wire rack to cool completely.

If desired, dust the cooled cake with powdered sugar before serving.