1: Wash and pat dry cod. Cut into 2-3 inch nuggets. In a small mixing bowl, combine potato starch, salt, and black pepper. Coat cod with this mixture and refrigerate.
2: In a skillet, add all ingredients listed under BRAISING LIQUID. Combine well and cook until the sauce starts to boil.
3: Once it boils, add cod, cover, and cook for 5-10 minutes (or until cod is cooked through).
4: After 5-10 minutes, uncover, taste test and adjust if needed. Spoon braising liquid over cod for about 2 minutes.
5: Garnish with chopped scallion and serve.