My Best Clam Chowder

INGREDIENTS

• 3 (6.5 ounce) cans minced clams
• 1 cup minced onion
• 1 cup diced celery
• 2 cups cubed potatoes
• 1 cup diced carrots
• 3/4 cup butter
• 3/4 cup all-purpose flour
• 1 quart half-and-half cream
• 2 tablespoons red wine vinegar
• 1 1/2 teaspoons salt
• ground black pepper to taste