Bring the chicken broth to a rolling boil. If using water and chicken stock cubes, bring the water to a boil, add the stock cubes and let dissolve.
Add the agnolotti and cook according to the instructions on the package.
Add the cream, freshly-ground black pepper, and chopped parsley about 2 minutes before the end of the cooking, and turn down the heat.
Add the dash of sherry just before serving. If serving to children, dish out their portions first, then add the sherry for the grown-ups.
Let stand for a few minutes to marry the flavors, then serve, sprinkled with grated Parmesan cheese and enjoy.