Poaching shrimp and cod in wine-and-garlic-spiked fish stock elevates their flavor but keeps calories minimal. If you can't find fish stock at your grocery store, ask your fishmonger.
Prep: 30 mins Total Time: 40 mins Servings: 4 Yield: Makes 7 cups
2 medium vine-ripened tomatoes
2 tablespoons extra-virgin olive oil
1 small onion, finely chopped
2 garlic cloves, minced
1 small fennel bulb, quartered lengthwise, cored, thinly sliced crosswise, fronds reserved for garnish
Freshly ground white pepper
1 cup dry white wine
4 cups fish stock
12 ounces skinless cod fillets, cut into 1 1/2-inch pieces
12 ounces medium shrimp, peeled and deveined (tails left intact)
Prepare an ice-water bath. Bring a pot of water to a boil. Score an X into the bottom of each tomato using a sharp paring knife. Blanch tomatoes until skins loosen, 30 seconds to 1 minute. Transfer to ice-water bath using a slotted spoon. Peel and discard skins. Core and coarsely chop tomatoes.
Heat 1 tablespoon oil in a medium Dutch oven or a large pot over medium-high heat. Cook onion, garlic, and sliced fennel until fragrant and softened, 3 to 5 minutes. Season with 1/2 teaspoon salt and 1/4 teaspoon white pepper. Remove from heat, and add wine. Return to heat, and bring to a boil, scraping up brown bits from bottom using a wooden spoon. Cook until reduced by half, about 2 minutes.
Add stock and chopped tomatoes. Bring to a simmer. Stir in cod and shrimp, and return to a simmer. Remove from heat, and let stand, stirring halfway through, until cod and shrimp are just cooked through, about 3 minutes. Divide soup among 4 bowls, and drizzle with remaining tablespoon oil. Garnish with reserved fennel fronds. Serve immediately.
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