Preheat the oven to 375°.
Add the almond flour, flour, butter, sugar, and salt to a food processor and pulse until the butter is the size of rice.
Slowly drizzle in the water while pulsing until it becomes like a meal.
Transfer the dough to a clean surface with flour and roll it out until it is about 18” in diameter.
Next place the rolled-out dough onto a sheet tray lined with parchment paper and chill in the refrigerator.
In a large bowl gently mix together the sliced apples, lemon juice, sugar, and cinnamon until combined.
Transfer the apple mixture and fan it out and add them to the center of the rolled out dough chilled dough. Drizzle on melted butter
Fold up all the sides to the center until it is tightly sealed and sprinkle on the sugar everywhere.
Bake at 375° for 30-40 minutes or until browned and cooked.
Cool to room temperature and serve with optional ice cream, whipped cream and caramel