Wash the kale thoroughly, removing any tough stems. Chop the leaves into 1 inch sized pieces.
Shred the cabbage into 1/4- 1/2 in pieces.
In a large skillet or pan, heat the olive oil, butter, and fatback (if using) over medium heat. Add the diced onion and thyme and saute for 3 minutes. Thyme adds a slightly herby flavor. You can omit if you don't prefer it.Then add the minced garlic and sauté for about 1 minute or until fragrant. Be cautious not to let it brown.
Add the chopped kale to the skillet. Toss with the onions and garlic, add 1/4 cup of water, then cover. Turn the heat down to medium low and cook the kale for 10 minutes. Stir half way through the cook time.
Add the cabbage and seasonings. Cover and cook for 10- 15 minutes or until the cabbage is soft.
Adjust the seasonings to taste.
Enjoy!