Wash the chicken schnitzel, pat dry, remove fat, blood etc. if necessary, then carefully pat flat. Cover with a slice of boiled ham and cheese, fold up and secure with toothpicks or roulade needles.
Season the eggs with salt, pepper, paprika and Maggi vigorously and whisk. Turn the schnitzel first in flour, then in the egg-spice mixture and then in the breadcrumbs, the schnitzel should be well covered.
Heat plenty of oil in a pan, fry the cordon bleu carefully at a low temperature with little turning.