Melt the butter in a saucepan
Whisk together sugar, eggs, 1 tbsp cinnamon, and vanilla extract in a bowl
Add half the flour and the butter to the egg-mixture
Combine baking powder and the rest of the flour and pour into the dough - mix till combined
Put the dough in the fridge till cold (a little colder than room temperature)
Prepare the apples while waiting: Rinse the apples and remove the core. Cut the apples into thin slices
Distribute half of the dough in the sprintform pan by pressing it into the pan. Bring the dough at least 3 cm up the sides of the pan
Toss the apple pieces into the form and distribute them equally
Springle the apples with 1 tbsp of cinnamon
Roll out the rest of the dough into a circle the size of the springform pan
Put the circle-dough on top of the apples
Bake the pie at 200° C for 30 min