Black cod, also known as sablefish or butterfish, is the star of many fine dining restaurants in large part due to its succulent, buttery texture and savory-sweet flavor. It easily takes on the flavors of pretty much any type of sauce or rub that you can think up, from miso-sake glaze to honey-mustard marinade. Here we dress it with just a bit of olive oil, salt and pepper to let its true flavors shine through, but you can use any spice rub, glaze or marinade you like to spice things up at home.