Crispy Apple Tart with a Hint of Almonds

1. Peel the apples, remove the cores, and cut them into slices. To prevent them from browning, drizzle them with a few drops of lemon juice.
2. Crack the eggs into a glass bowl.
3. Add the 9 tablespoons of sugar to the eggs and whisk until the mixture is light and fluffy.
4. Gradually add the flour, baking powder, and oil, continuing to whisk.
5. Gently fold in the sliced apples and grated lemon zest with a spatula.