Suroviny
6 tablespoons (3/4 stick) unsalted butter, at room temperature, plus extra for greasing the dish
1 1/4 Granny Smith apples, peeled and sliced into 12 pieces
1 3/4 cups granulated sugar, divided
2 extra-large eggs, at room temperature
1/3 cup sour cream
1/2 teaspoon grated lemon zest
1/2 teaspoon pure vanilla extract
1 cup plus 2 tablespoons all-purpose flour
1/2 teaspoon baking powder
1/4 teaspoon kosher salt
Confectioners' sugar