Method:
In a bowl add the sifted flour, cinnamon, vanilla and egg white, mix with a whisk. Add the sugar, water and oil, continue mixing until the dough is smooth and without lumps. Pour the thinly sliced apple into the dough, leave a few slices aside to insert at the end. Mix them well into the dough and finally add the cream of tartar and baking soda.
Pour the mixture into a springform pan lined with baking paper, add the other slices of apple and almonds, bake at 180 degrees, preheated oven, for 40 minutes.
After the time has elapsed, take the cake out of the oven and let it cool for 10 minutes before removing it from the mold, then arrange on a plate and let it cool completely before cutting it and enjoying it!