In a large pot, with oil on medium high heat, sauté onion, celery and carrots for 3 minutes.
Add sweet potatoes and sauté for 3 minutes.
Add Roasted Chicken Base and water, stirring until base dissolves. Bring to a boil. Let simmer for 10 minutes or until sweet potatoes are soft.
Add chicken, kale and black pepper. Let simmer for 5 minutes.
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