cheeseburger soup recipe

### Ingredients: - **1/2 pound** ground beef - **3/4 cup** chopped onion - **3/4 cup** shredded carrots - **3/4 cup** diced celery - **1 teaspoon** dried basil - **1 teaspoon** dried parsley flakes - **4 tablespoons** butter, divided - **3 cups** chicken broth - **4 cups** diced potatoes - **1/4 cup** all-purpose flour - **2 cups** shredded cheddar cheese - **1 1/2 cups** milk - **1/4 cup** sour cream - **Salt and pepper**, to taste