Ingredients 4 Tablespoons butter ½ cup onions, finely diced ½ cup celery, finely diced ½ cup carrots, finely diced 2 cloves garlic, minced 2 cups cooked chicken, diced or shredded* See Note 1 1 Russet potato,, diced 3 Tablespoons flour 2 cups chicken broth 1/4 cup dry white wine, optional, can also use chicken...