Fry the chopped chicken breast fillet in hot oil. Add the drained corn and top up with the chicken stock.
Mix the corn flour with a little water and add with a whisk. Bring the soup to a boil and stir in the cream. Simmer for 5 minutes on a gentle heat, season to taste and season with port wine or sherry as desired.
Arrange the soup in plates, garnish with parsley and serve with crispy bread croutons if desired.