Heat oven to 350°F. Grease a 9-inch springform or cake pan and line the bottom with parchment.
Toss the sliced apples with lemon juice and 1 teaspoon cinnamon; set aside to lightly macerate.
Whisk melted butter and sugar until glossy. Beat in eggs and vanilla until smooth.
Stir in the milk until combined.
In a separate bowl, whisk flour, baking powder, salt, remaining 1 teaspoon cinnamon, and cardamom.
Fold dry ingredients into the wet mixture just until no dry streaks remain; do not overmix.
Spread batter in the pan. Arrange apples on top in circles. Sprinkle with turbinado sugar and almonds.
Bake 38–45 minutes, until golden and a tester comes out clean from the center.
Cool 15 minutes in the pan, then release and serve warm or at room temperature.