With a sharp knife (or a mandolin), thinly slice your cabbage and onion.
In a cast iron pan (you can use any pan but cast iron gives a nice smokiness to it!), add in the olive oil and heat over high heat until very hot.
Add onion and cabbage and stir to coat in oil; cook on high heat for about 5 minutes (the bottom should start to caramelize)
Stir well and add 1/2 cup of water; stir again and cook for 3 minutes.
Add the rest of the water and cook for another 5 minutes, stirring as the cabbage softens
Add 2 tsp salt and spices, then add the apple cider vinegar and hot sauce; stir well and cook for an additional 10 minutes on medium low (stirring) until cabbage is soft and to your liking.
Stir in the parsely and serve as a side dish.