1. Combine flour and 1 teaspoon kosher salt in a food processor; pulse to combine. Pulse in butter. Slowly drizzle in water, 1 tablespoon at a time, pulsing until a smooth ball of dough forms. Refrigerate dough 30 minutes. Roll dough into a 13-inch circle. Place in a 10-inch deep-dish pie plate; crimp edges of dough. Chill crust 30 minutes.
2. Line crust with parchment, and fill with pie weights or dried beans. Bake at 375° for 20 minutes. Remove parchment and pie weights, and bake 10 minutes or until crust is lightly browned. Let cool.
3. Heat oil in a medium skillet over medium-high heat. Add leek, and cook, stirring often, 5 minutes or until softened. Add wine, and cook 3 minutes or until most of the liquid evaporates.
4. Transfer leek mixture to a large bowl. Add cream, next 3 ingredients, and remaining 1/2 teaspoon kosher salt; whisk until smooth. Stir in crabmeat. Transfer mixture to crust, and bake at 375° for 30 to 35 minutes or until top is browned and center is almost set. Let stand 10 minutes before slicing. Serve with Braised Apples and Meyer Lemon Crème Fraîche.