Lobster Bisque Recipe

Ingredients

• 7 cups water, divided
• 3/4 teaspoon salt, plus more to taste
• 1 large (2-pound) or 2 small (1-pound) live lobsters
• 2 tablespoons olive oil
• 1 medium yellow onion, sliced
• 1 medium carrot, sliced
• 1 stalk celery, sliced
• 2 sprigs fresh thyme
• 1 clove garlic, sliced
• 2 tablespoons tomato paste
• Pinch of cayenne pepper, or to taste
• 1 bay leaf
• 1 cup dry white wine
• 2 1/2 tablespoons unsalted butter, at room temperature
• 6 tablespoons all-purpose flour
• 1/3 cup cream sherry
• 1 cup heavy cream
• 2 tablespoons fresh lemon juice