A delicious crockpot soup, which can be served warm or chilled. Adapted from Betty Crocker's "Slow Cooker" cookbook. Cooking times vary depending on whether you cook the soup on a low or on a high setting: 8-10 hours on low; or 3-5 on high. I posted this recipe for safe-keeping before I'd made it; and I have since made it with a few changes. See notes below.