In a large stock pot over medium heat, heat the olive oil then brown the Italian Sausage. Break the sausage into crumbles while cooking. Once browned, add the onion and garlic. Cook for a couple minutes until the onion starts to soften and the garlic becomes fragrant.
Pour the chicken broth into the stock pot. Next, add the sweet potatoes, apple cider vinegar, adobo seasoning, salt, pepper, thyme, and rosemary sprig.
Bring everything in the pot to a boil, then reduce the heat to simmer. Let the pot simmer for for at least an hour, stirring occasionally, until the sweet potato becomes soft.
Once the sweet potatoes have softened, remove the rosemary spring then use a ladle to remove a cup of liquid, onion, and sweet potato. Be sure to not grab any sausage. Put the cup of soup you have just removed into a blender with the heavy cream and puree.
Add the puree back to the pot and mix it in. Add about 2 cups of the chopped kale into the pot and allow it to wilt. Kale is tough, so this will take about 20 minutes.
Serve it up, garnish with a little cream, and Enjoy!