Dry each egg with a paper towel, then roll lightly in flour to coat. Take one portion of sausage and using hands, shape a coating around the hard boiled egg, completely enclosing it (see photos). Roll in flour again, then dip in beaten egg then roll in breadcrumb mixture. Repeat with remaining eggs.

Heat about 2-3 inches of oil in a large skillet. Fry eggs, turning frequently, until golden brown on all sides. Drain on paper towels. Let cool slightly before serving. To serve, cut each in half and serve with some good mustard.