Take half a cabbage and cut it into 3 wedges, ensuring each piece retains a portion of the stalk.
Heat a pan with oil over high heat. Place the wedges flat side down and sear.
In a small mixing bowl, combine butter, miso, and yuzu kosho (optional.)
Lower the heat, and add the miso butter. Allow it to melt and foam, using your spatula or tongs to move around the cabbage for even coating.
Pour in the chicken broth and bring it to a simmer. Spoon it over the cabbages, making sure to bathe all the layers in the broth.
Braise for about 5-7 minutes until the cabbage is tender. Insert a skewer into the thickest portion of a cabbage wedge to check for doneness.