Preheat the oven to 180°C (350°F) and grease a pie form with butter to prevent sticking.
In a large bowl, whisk the eggs and sugar together until light and fluffy.
Add the milk and a splash of vanilla extract, mixing until well combined.
Sift in the flour and baking powder, stirring until a smooth batter forms.
Arrange the sliced apples evenly in the greased pie form.
Pour the batter over the apples, ensuring they are fully covered.
Bake for 35–40 minutes, or until golden brown and a toothpick inserted in the center comes out clean.
Let the pie cool slightly before serving. Enjoy warm or at room temperature.