Rich and Creamy Lobster Bisque Recipe

Name: Rich and Creamy Lobster Bisque Recipe
Ingredients: 3 cups water; 10 ounces lobster tails (2 large or 3 small tails); 2 tablespoons butter or olive oil; 1 yellow onion, roughly chopped; 2 large carrots, peeled and chopped; 3 stalks celery, chopped; 4 cloves garlic, peeled and smashed; ½ cup brandy; 2 tablespoons Pernod liqueur; ¼ cup tarragon, packed, plus more for serving; 3 bay leaves; 1 tablespoon black peppercorns; 1 cup clam juice; ¼ cup tomato paste; ½ cup heavy whipping cream, plus more for serving; 1 tablespoon cornstarch, dissolved in water; salt and pepper, to taste