Shrimp Bisque | America's Test Kitchen

Ingredients

• 4 tablespoons unsalted butter
• 2 pounds medium shrimp , peeled, deveined, and chopped; shells reserved
• 2 onions , chopped
• 2 celery ribs , chopped
• 2 carrots , peeled and chopped
• 2 garlic cloves , minced
• 6 tablespoons all-purpose flour
• 6 tablespoons tomato paste
• 6 (8-ounce) bottles clam juice
• 2 cups white wine
• 2 sprigs fresh thyme
• 2 cups heavy cream
• Salt and pepper