Preheat your oven to 375°F (190°C) and lightly grease a 9-inch springform pan.

In a medium bowl, whisk together 1 cup of all-purpose flour, 1 teaspoon of baking powder, and a pinch of fine sea salt for 1-2 minutes.

In a large mixing bowl, combine 3/4 cup of granulated sugar, 2 large eggs, and 1 teaspoon of pure vanilla extract. Whisk until thickened and pale in color.

Gradually incorporate half of the dry mixture into the wet mixture and add half of the melted, cooled unsalted butter. Repeat until smooth.

Core and chop 3 cups of baking apples and toss with 1 tablespoon of lemon juice.

Gently fold the apple mixture into the batter and transfer to the prepared springform pan.

Sprinkle extra granulated sugar on top and bake for 40 to 50 minutes until golden brown.

Let the cake cool in the pan for 15 minutes, then release and slice. Dust with confectioner's sugar before serving.