Add apples, cinnamon and cook for about 5-6 minutes. Remove from the heat.
In a separate bowl, add flour, egg, sugar, butter and baking powder. Using your hands, combine all the ingredients to obtain a crumbly mixture. Stop there and do not knead any further.
Heat the oven at 350 F.
Line the bottom of the springform pan with a round piece of parchment paper.
Take ¾ of your crumbly dough and place it on the bottom of the pan. Using a spoon, spread it and compact it, forming a crust.
Pour your apple mixture on top. Top with the rest of your dough crumbles.
Bake for about 35 min or until golden brown. Enjoy warm or cold!
Recipe by Very EATalian at https://www.veryeatalian.com/apple-crumble-cake/