Condensed Homemade Cream of Mushroom Soup

Bahan-bahan (2 porsi)

• 1 1/3 cup vegetable stock
• 2/3 cup milk
• 1/3 cup all-purpose flour
• 1/2 cup finely-chopped fresh mushrooms
• 1/2 tsp . salt
• 1/4 tsp . garlic powder
• 1/4 tsp . freshly-ground black pepper
• 1/4 tsp . onion powder
• 1/8 tsp . celery seed (optional)
• 1/8 tsp . dried thyme