In a medium bowl, mix together the pork sausage and Worcestershire sauce. Combine the flour, salt and pepper and stir into the sausage mixture
Divide the sausage mixture into four equal parts. Mould each part around one of the hard-boiled eggs, rolling between your hands to shape. Place the beaten egg and bread crumbs into separate dishes. Dip the balls into the egg, then roll in the bread crumbs until coated. Shake off any excess.
Heat the oil in a large saucepan or deep fryer to 180C or until a cube of bread dropped into the oil turns brown in 1 minute. Lower the eggs carefully into the hot oil and cook for 5 minutes or until deep golden brown.