Sup Burger Keju

Bahan-bahan (6 porsi)

• 1 pound daging giling
• ¾ cup bawang bombay cincang
• ¾ cup wortel parut
• ¾ cup seledri potong dadu
• 1 teaspoon kemangi kering
• 1 teaspoon dried parsley flakes
• 4 tablespoons butter (divided)
• 3 cups kaldu ayam
• 4 cups kentang kupas dan potong dadu
• ¼ cup all-purpose flour
• 2 cups Velveeta processed cheese cubed (or 2 cups shredded cheddar cheese)
• 1 ½ cups susu
• ¾ teaspoon garam
• ¼ to ½ teaspoon pepper
• ¼ cup sour cream