cream of chicken soup recipe

Ingredients 2 tablespoons butter 1 small onion, finely chopped 2 cloves garlic, minced 1/4 cup all-purpose flour 4 cups chicken broth 2 cups cooked chicken, shredded or diced 1 cup heavy cream or half-and-half 1/2 teaspoon dried thyme Salt and pepper to taste Optional: 1 cup sliced mushrooms, 1/2 cup diced carrots, 1/2 cup diced celery