This tart (from Chow) is as chic as it is simple. The filling requires no baking, so after a few hours in the refrigerator, just slice and serve. While you wait, make the cherry-vodka sauce; its sweet cherry flavor is a perfect complement to the tart’s bittersweet, truffle-like interior. Game plan: The tart can be made up to 2 days ahead. Store covered in the refrigerator. The cherry-vodka sauce can be made up to 4 days ahead. Refrigerate in an airtight container until ready to use.