Beat the sugar mixture and sift the dry ingredients.
Add apple slices to sugar mixture and coat the apples.
Add dry ingredients to the apple mixture and blend in and coat the apples evenly as possible. The consistency of the batter will be gooey.
Oil and flour a 9x13 glass pan
Bake the mixture in the pan for 60 minutes.
Notes
For Gluten Free version, use Gluten Free flour like King Arthur's Paleo Baking FlourFor Dairy-Free version, use coconut ice cream or soy ice cream. If using a ceramic pan, like Staub or Le Creuset, add additional ten minutes to the cooking times.