Keep your chowder light to preserve the flavour of your cod

By America’S Test Kitchen The Associated Press

This modern fish chowder honours its simple roots by showcasing moist, tender morsels of fish in a delicate broth. Searching for a route to fresher, cleaner flavours, we got a bonus: shorter cooking time.
We started by gently poaching meaty cod in water flavoured with salt pork, onions, and herbs, which created a quick fish stock and eliminated any chance of over-cooking the fish. We added whole milk to this stock, as opposed to other rich dairy like half-and-half and heavy cream, to keep the chowder light and fresh-tasting and preserve the flavour of the cod.
A tablespoon of cornstarch whisked into the milk before adding it to the pot coated its proteins, preventing it from curdling as the soup simmered. To keep the salt pork flavour from becoming overbearing, we left it in two large chunks that didn’t produce as much browning and used butter to sweat the onions. Haddock, or other flaky white fish, may be substituted for the cod.
Garnish the chowder with minced fresh chives, crisp bacon bits, or oyster crackers.
Servings: 6-8
Start to finish: 1 hour
2 tablespoons unsalted butter
2 onions, cut into 1/2-inch dice
4 ounces salt pork, rind removed, rinsed, and cut into 2 pieces
1 1/2 teaspoons minced fresh thyme
Salt and pepper
1 bay leaf
5 cups water
2 pounds skinless cod fillets, sliced crosswise into 6 equal pieces
1 1/2 pounds Yukon Gold potatoes, peeled and cut into 1/2-inch dice
2 cups whole milk
1 tablespoon cornstarch
Melt butter in Dutch oven over medium heat. Add onions, salt pork, thyme, 3/4 teaspoon salt, and bay leaf; cook, stirring occasionally, until onions are softened but not browned, 3 to 5 minutes. Add water and bring to simmer. Remove pot from heat, gently place cod fillets in water, cover, and let fish stand until opaque and nearly cooked through, about 5 minutes. Using metal spatula, transfer cod to bowl.
Return pot to medium-high heat, add potatoes, and bring to simmer. Cook until potatoes are tender and beginning to break apart, about 20 minutes.
Meanwhile, whisk milk, cornstarch and 1/2 teaspoon pepper together in bowl. Stir milk mixture into chowder and return to simmer. Return fish and any accumulated juices to pot. Remove pot from heat, cover, and let stand for 5 minutes. Discard salt pork and bay leaf. Stir gently with wooden spoon to break fish into large pieces. Season with salt and pepper to taste. Serve immediately.