The 29-year-old had already delighted the home Norwegian crowd just 24 hours earlier as he claimed victory in this season's World Cup opener.
And Moan was at it again on Sunday as he repeated the trick to extend his lead atop of the World Cup standings.
Moan was ranked sixth after the ski jump but stormed the cross-country section in 26:44.4 minutes to move up the rankings and take the victory.
And there was more for the home fans to cheer as fellow Norwegian Haavard Klemetsen took second, five seconds behind Moan, while German Eric Frenzel was third.
Moan has a maximum 200 points from the first two World Cup rounds, with France's Jason Lamy Chappuis 70 behind in second after finishing fourth in Norway, level on points with Klemetsen.