Preheat oven to 350 F.
Pare apple, then chop into slices. Layer into 13 x 9 in baking dish.
Mix almond flour, coconut flour, cinnamon, pink salt, and chopped nuts (and coconut sugar if desired) in bowl.
Melt coconut oil and pour into topping mixture. Mix evenly.
Spread topping mixture onto apples.
Bake for 45 minutes or until apples are soft.