Ingredients

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

Method

  • In a 4- or 5-qt. slow cooker, combine all ingredients except sour cream and pepitas. Cook, covered, on low until potatoes are tender, 5-6 hours.
  • Puree soup using an immersion blender. Or, cool slightly and puree soup in batches in a blender; return to slow cooker and heat through. If desired, top servings with sour cream and pepitas.
  • Freeze cooled soup in freezer containers. To use, partially thaw in refrigerator overnight. Heat through in a saucepan, stirring occasionally and adding a little broth or water if necessary.