Salt and pepper your roast and then brown on each side in the bacon fat on the saute feature OR if your slow cooker doesn't have a saute feature, just brown in a skillet on the stove before transferring to your traditional 6 quart slow cooker.
In a bowl, mix together garlic, onion, sugar, vinegar and broth.
Pour mixture over your roast and top with the herbs.
Cook on low for 8-10 hours.
Remove herbs and serve roast with sauce.
We love using a multi-cooker to make this roast to make it a one-pot dish, however, you can use a traditional 6 quart slow cooker and just brown your roast in a skillet on the stove if you do not have a multi-cooker.