Clam Chowder

Name: Clam Chowder
Ingredients: 3 dozen medium clams; 4 tablespoons butter; 1 stalk celery, finely chopped; 1/2 small sweet onion, finely chopped; 1 teaspoon salt; 1 tablespoon ground black pepper; 2 tablespoons seafood boil seasoning, such as Old Bay; 1/2 cup self-rising flour; 4 slices bacon; One 6-ounce bottle clam juice; 5 medium potatoes, cooked, peeled, chopped; 3 scallions, sliced; 3 cups milk; 1 1/2 cups half-and-half; Dried parsley, for garnish