In this recipe from Ellie Krieger's book Whole in One, cod fillets are simmered in a sumptuous broth that’s made magically golden and aromatic with a generous pinch of saffron, along with onion, carrot, fennel, white beans, and thyme.
Dress the beans while they’re still slightly warm and serve this salad at room temperature (not cold) for the best flavor. Great for a potluck, this also makes a nice supper with grilled tuna or swordfish.