Prepare a 9x9 baking pan with cooking spray or parchment paper and preheat the oven to 375F
Heat a sauce pan over medium heat. Peel and chop apples.
In the sauce pan add all the ingredients except for the arrowroot flour to the pan and stir with a spoon. Allow mixture to heat for 3 minutes, then add the arrowroot flour, stir until combined and cook until the mixture becomes thick.
In a food processor, add all of the ingredients for the crust and process until mixture becomes a dough consistency.
Transfer the dough to the baking pan and spread out until it covers the bottom of the pan completely. Pour the apple filling over the top of the dough and spread out until there is an even layer.
In the food processor, add the crumble ingredients and pulse until it becomes a crumble texture. Spread evenly over the apple filling and transfer to the oven.
Cook for 20-25 minutes or until the top is browned and middle is set.
Serve with dairy free vanilla ice cream and enjoy. (see notes for my keto and dairy free recipe)