Slow Cooker Loaded Potato Soup

Ingredients (13)

• + 4 pounds russet potatoes, peeled and chopped add to pantry
• + 1 (32 ounce) carton low-sodium chicken stock add to pantry
• + 1 yellow onion, diced add to pantry
• + 1 ½ teaspoons salt add to pantry
• ✓ 1 ½ teaspoons ground black pepper
• + 1 (16 ounce) package thick cut bacon, cut into 1/2-inch pieces add to pantry
• + 1 cup shredded Cheddar cheese, divided add to pantry
• + 2 teaspoons garlic powder add to pantry
• + 2 cups heavy cream add to pantry
• ✓ 4 tablespoons butter
• + ¼ cup all-purpose flour add to pantry
• ✓ ¼ cup sour cream
• + 2 tablespoons chopped scallions, or to taste add to pantry