Slow Cooker Sweet Potato Soup | Reader's Digest Canada

Ingredients

• 3 pounds (about 8 cups) sweet potatoes (peeled and cut into 1-inch cubes)
• 2 tbsp butter
• 1 tbsp Worcestershire sauce
• 1 tsp dried minced onion
• 1 tsp dried celery flakes (optional)
• 1/2 tsp salt
• 1/2 tsp pepper
• 1/4 tsp dried thyme
• 1/8 tsp ground chipotle pepper
• 6 cups reduced-sodium chicken broth
• Sour cream and pepitas (optional)