Butcher expert Pat LaFrieda told Business Insider how to make the perfect burger at home.Ion Tavitian/500px/Getty Images Butcher expert Pat LaFrieda told Business Insider how to make the perfect burger at home. LaFrieda never adds lettuce to his burger, and he loves using halved grape tomatoes for flavor. He prefers brioche buns and only adds a small dollop of mayonnaise for the sauce.