Suan Cai Beurre Blanc

I wish I could say this is entirely my idea, but this originally came from a dish I had recently, when the chef prepared the seared threadfin fish with fermented cabbage, fish broth and chili oil, a dish said to be inspired by the Sichuan classic “Suan Cai Yu” (hot and sour fish with fermented vegetables 酸菜魚). Taking the cue, I decided to do my own version, switching the local threadfin fish with the pack of Patagonian Toothfish which I received from the online seafood purveyor Qwehli served with Beurre Blanc sauce made based on the traditional recipe with the addition of “suan cai” (fermented vegetables 酸菜) and fatty pork.