French Mussel Bisque

Name: French Mussel Bisque
Ingredients: 1 (750-ml) bottle dry white wine, divided; 3 pounds fresh mussels, cleaned; 6 tablespoons (3/4 stick) unsalted butter; 1 1/2 cups chopped yellow onion (2 onions); 1 large leek, white and light green parts, cleaned and chopped; 2 carrots, chopped; 4 teaspoons minced garlic (4 cloves); 1/2 teaspoon saffron threads; Kosher salt and freshly ground black pepper; 4 whole canned plum tomatoes, chopped; 1 1/2 cups half-and-half; 1 cup heavy cream; 2 tablespoons minced fresh parsley or dill