The 36-year-old rolled back the years with a vintage display and netted the opening goal after just 38 seconds.
Giovanni van Bronckhorst's team needed the victory to secure the Dutch Eredivisie title and they did so in style.
Liverpool's former No.18 netted again after 12 minutes and sealed his treble from the penalty spot six minutes from time.
Former Liverpool goalkeeper Brad Jones also started the game for Feyenoord as they clinched the title by just one point from rivals Ajax.
Everybody at Liverpool FC would like to send their congratulations to Dirk and Brad.