3 cups water. 1 pinch salt. 1 cup half-and-half cream. ¼ cup brown sugar, or to taste. Steps: Just before going to bed, combine the oats and water in a slow cooker. Set on Low, cover, and let cook overnight. In the morning, stir in the salt and half-and-half. Scoop into bowls, and sprinkle brown sugar over the top.