NYT Cooking: Cod cakes are terrific with cod, but can be made with any white-fleshed fish. Poach the fillets in bay-leaf-scented water, then flake the cooled meat into a New Englandish mirepoix of sautéed onions and celery. Eggs and cracker crumbs will help bind everything together below a drift of spice. Make sure to leave some time to chill the resulting patties in the refrigerator...