In a 1 1/2- or 2-quart slow cooker or a 1 1/2-quart casserole combine the water, apple cider, farro, and salt.
If using the 1 1/2-quart casserole, place casserole inside a 5- to 6-quart slow cooker and add enough water to cooker to reach halfway up sides of casserole. Cover slow cooker and cook on low-heat setting for 8 hours.
Stir raisins, dried cranberries, and maple syrup into hot cereal. Sprinkle individual servings with pecans.