Preheat oven to 350 degrees F and grease 9x13" pan with cooking spray.
Stir together Apple ingredients (minus the apples)
Mix Apple ingredients with apples and heat for 3-5 minutes, stirring.
In a large bowl (or food processor/blender), sift the flour, sugar, baking powder & salt together. Cut in the butter.
In another bowl, beat the egg and milk together. Combine the egg mix with the flour mix using the food processor/blender until combined.
Bake for about 38-40 minutes or until a toothpick inserted into topping comes out clean.
Allow to cool for 15 minutes. Serve warm with vanilla ice cream, if desired.