Crack eggs into a large glass bowl and add the cinnamon and baking powder. Beat on high for one minute and set aside.
Clean and peel, core, and dice the apples into small pieces. Toss into food processor or blender and add 3 cups of water.
Add pureed apples to the egg mixture and incorporate with a spoon.
Slowly beat in flour until all the ingredients are blended. The mixture will look grainy, not like a typical cake batter.
Press mixture into a cake pan or muffin pan of choice, or roll 1” balls and place on a cookie sheet. A ceramic or oiled glass pan works best.
Cookies and muffins bake for approximately 30 minutes while a larger cake approximately one hour. A toothpick inserted into the center should come out clean when the cakes are baked.
Allow to cool completely before removing from pan.