- 2 cups dry white wine
- 3 tablespoons wine vinegar
- 3 tablespoons olive oil
- 2 onions, cut in half lengthwise and then crosswise into thin slices
- 1 carrot, cut into thin slices
- 1 clove garlic, smashed
- 3/4 teaspoon dried thyme
- 1/2 teaspoon coriander seeds
- 8 peppercorns
- 1 sprig parsley
- 2 bay leaves
- 1 1/2 teaspoons salt
- 2 pounds mackerel fillets
- 1/4 teaspoon fresh-ground black pepper
- In a medium stainless-steel saucepan, combine the wine, vinegar, oil, onions, carrot, garlic, thyme, coriander, peppercorns, parsley, bay leaves, and salt. Cover and bring to a boil. Reduce the heat to moderately low and cook for 10 minutes.
- Oil a heavy flameproof 9-by-13-inch stainless-steel or enamel pan. Put the fish, skin-side down, in the pan in an even layer. Pour the hot wine broth on the fish, spread the vegetables over the fillets in an even layer, and sprinkle with the ground pepper. Cover with aluminum foil and bring to a simmer over moderately high heat. Reduce the heat and cook at a gentle simmer until the fish is just done, about 10 minutes for 1/2-inch-thick fillets. Remove the parsley and bay leaves. Serve in shallow bowls.