Spray a large soup pot with non-stick cooking spray. Sauté onion, peppers, garlic and celery on medium heat until cooked and onion is translucent. Add flour, stirring constantly for one minute to avoid burning. Add chicken broth slowly, stirring well. Add potato, corn, and cumin, then bring chowder to a boil.
Reduce heat and simmer uncovered for twenty minutes or until sweet potatoes are tender. Add half and half.
Serve now or allow to cool and freeze in freezer containers in your preferred serving size.
On serving day
Remove from freezer for defrosting.
Transfer to soup pot and reheat over low heat. Top with cheddar cheese if desired.
Notes
You can swap out the chicken broth for vegetable broth to make this dish vegetarian.