• Yield: Serves 4 to 6

This soup of pasta and clams is a Sardinian classic that’s all about simplicity. It relies chiefly on the flavor inherent in the soup’s two main ingredients: chewy, toasty spherical fregula, and arselle, the small, briny, succulent hard-shell clams found along the coast. Broth enriched with tomatoes (in various forms depending on the recipe), parsley, garlic, a touch of fragrant saffron, pepper flakes, and olive oil traditionally constitute the soup base. We cooked the pasta using the absorption method, right in our soup’s base of chicken broth and water; this way, the fregula soaked up the flavorful broth during cooking. As a substitute for the Sardinian arselle, which aren’t widely available in the United States, we landed on diminutive cockles. which are sweet and readily accessible. To cook the clams perfectly, we used our standard test kitchen method of steaming them in a shallow covered skillet and removing the clams as they opened. We chose sundried tomatoes, which are found in some traditional versions of this recipe, for our tomato product; given the soup’s quick cooking time, their deep, concentrated flavor was a bonus. A sprinkle of parsley and lemon zest contributed a bright finish to a dish that was simply satisfying. Cockles are traditional here and our preferred choice, but if unavailable, you can substitute small littleneck clams. 


  • 2 tablespoons extra-virgin olive oil, plus extra for serving

  • 2 garlic cloves, minced

  • 1/8 teaspoon red pepper flakes 

  • 1/8 teaspoon saffron threads, crumbled

  • 2 cups chicken broth  

  • 2 cups water

  • 1/3 cup oil-packed sun-dried tomatoes, patted dry and chopped coarse

  • 1/4 cup minced fresh parsley

  • 1 1/2 cups fregula 

  • 2 pounds cockles, scrubbed    

  • 1 cup dry white wine

  • 1/4 teaspoon grated lemon zest

  • Salt and pepper

Tasting Italy: A Culinary Journey Tasting Italy: A Culinary Journey by America's Test Kitchen and National Geographic


1 Heat oil in Dutch oven over medium heat until shimmering. Add garlic, pepper flakes, and saffron and cook until fragrant, about 30 seconds. Stir in broth, water, tomatoes, and 2 tablespoons parsley and bring to boil. Stir in fregula and cook, stirring often, until al dente.

2  Meanwhile, bring clams and wine to boil in covered 12-inch skillet over high heat. Cook, shaking skillet occasionally, until clams have just opened, 6 to 8 minutes. Using slotted spoon, transfer clams to large bowl. Discard any unopened clams. Cover to keep warm.

3 Strain clam cooking liquid through fine-mesh strainer lined with coffee filter into pot, avoiding any gritty sediment that has settled on bottom of pan.

4  Stir in lemon zest and remaining 2 tablespoons parsley and season with salt and pepper to taste. Top individual portions with clams and drizzle with extra oil before serving. 

Excerpted from Tasting Italy: A Culinary Journey by America's Test Kitchen, Eugenia Bone and Julia Della Croce. Copyright 2018 National Geographic.

America's Test Kitchen
The Splendid Table frequently visits with the test cooks at America’s Test Kitchen to discuss a wide range of topics including recipes, ingredients, techniques and kitchen equipment.