Preheat oven to 350°F (175°C) and lightly grease a round baking pan
Add sliced apples to a skillet with 2 tbsp sugar and cinnamon
Cook over medium heat until apples soften slightly and release juices
Spread the cooked apples evenly in the prepared baking pan
In a bowl, whisk eggs and sugar until slightly pale and smooth
Add milk, cream, vanilla extract, and melted butter, mixing well
In a separate bowl, combine flour, baking powder, and salt
Gradually fold dry ingredients into the custard mixture until smooth
Pour the batter evenly over the apples in the pan
Bake for 40–45 minutes until top is golden and center is set
Allow cake to cool slightly before dusting with powdered sugar
Slice and serve warm or at room temperature