To a large skillet, add the butter, onion, and saute over medium-high heat for 5 minutes; stir intermittently.
Transfer the onion, plus all remaining ingredients to at least a 7 to 8-quart slow cooker.
Cover and cook on high for 2 hours or low for 4 hours and serve.
To a large Dutch oven or stockpot. add the butter, onion, and saute over medium-high heat for 5 minutes; stir intermittently.
Add the carrot and saute for another 2 to 3 minutes, stir intermittently.
Add the garlic and saute for 1 minute, stirring nearly constantly.
Add all the remaining ingredients, bring to a boil, and then reduce the heat to medium-low or low, and simmer for approximately 20 minutes and serve.
