Preheat oven to 375°F (190°C) and lightly grease an 8x8 inch baking dish with coconut oil.
In a large mixing bowl, toss the apple slices with lemon juice, coconut sugar, cornstarch, cinnamon, ginger, cardamom, cloves, and black pepper until evenly coated.
Transfer the apple mixture to the prepared baking dish and spread into an even layer.
In a separate medium bowl, combine the rolled oats, almond flour, chopped pecans, and sea salt.
Add the melted coconut oil and maple syrup to the oat mixture, stirring until a clumped, crumbly texture forms.
Sprinkle the crumble mixture evenly over the apples, covering the surface.
Bake for 40 to 45 minutes until the fruit juices are bubbling and the topping is deeply golden brown.
Remove from the oven and allow to cool for at least 10 minutes to let the juices thicken before serving.