Baked Potato Soup

Bahan-bahan (4 porsi)

• 6 slices bacon (chopped)
• 1 small onion (diced)
• 2 tablespoons all-purpose flour
• 2 cloves garlic (minced)
• 3 cups reduced sodium chicken broth
• ½ teaspoon salt
• ¼ teaspoon black pepper
• 3 cups prepared mashed potatoes
• 1 ¼ cups shredded sharp cheddar cheese (divided)
• ½ cup buttermilk
• ⅓ cup sour cream (plus extra for garnish)
• 2 g reen onions (finely chopped)