Everybody who makes corned beef at all makes it with cabbage.
But Sarah and I have been instructed by her 99 year old great aunt that the two of us had better start eating as much kale as possible, pronto. We took her at her word, and believe kale is the secret to long life, happiness, and a cranky unwillingness to throw anything out. I swear. There was half a raw potato in her fridge so old the whole thing was black. I tried to throw it out, she threw a fit. "There's nothing wrong with that! I'll eat that right now!" We can't deny that kale is a healthful and delicious way to enhance your life.
So Sarah cooked the corned beef itself for several hours, and then cooked it with kale and potatoes to make a great bring-to-work soup.