Boil peeled and chopped potatoes if not already cooked.
Saute celery and onion in butter for a few minutes.
Sprinkle with flour and add the chicken stock and bring to boil. Add half and half and turn down heat to make a thick sauce. Do not boil.
Add potatoes to soup.
Add cubed Velveeta until melted and creamy. Do not boil.
Season with garlic, salt, and pepper.
Ladle into bowls and toppings. Enjoy!