In a frying pan, brown the ground Italian sausage. Take the sausage and pour it into the crockpot.
Dice up the potatoes, onion and garlic then add into the crockpot as well. Pour the chicken broth into the crockpot and crumble a chicken bouillon cube over the top.
Cover the crockpot and cook on high for 4 hours. After the 4 hours are up, add in the butter, heavy cream and raw kale. Stir into the soup and cover for 15-20 minutes to allow the kale to wither.
Taste for salt and pepper then serve, enjoy.