Place cubed butter in freezer while you assemble all your ingredients. Preheat the oven to 350.
In a small food processor, place flour, a pinch of salt, and 1 tablespoon of the sugar. Add the butter from the freezer and pulse until mixture looks like wet sand. Add the cold water and pulse again until dough just begins to come together in a large lump.
Pour the contents of the food processor into a 10" tarte pan and using your fingers, press the crust into pan, forming a crust. Refrigerate the crust while you prepare the apples.
Peel the apples, cut into quarters, core them roughly and then slice them thinly. Place them in a bowl and toss with the lemon juice, the remaining 1 Tablespoon of sugar, the cinnamon and a pinch of salt. Remove the crust from the refrigerator and dump the apples onto the crust, spreading them evenly.
Brush the whole tarte with melted butter and bake until tarte is golden and apples have cooked down a fair amount, about 50 minutes.