Coach Steve Fleming paid tribute to his team's performance in overhauling former leader Dunedin Technical with a grinding burst of winning form in the competition's latter stages.
"The team knew it was not playing well earlier, but they are one of the best squads I have been with," Fleming said.
"They just kept working hard at training, and finally earned their just reward today.
"This is the 13th title trophy I have won, and none have been as sweet as this one, watching the lads battle their way back into contention and clinching the trophy."
Roslyn coach Terry Boylan was magnanimous in praise of Caversham.
"They are a class team and deserve the championship," Boylan said.
Yet in the initial 20 minutes, it looked like Roslyn might spoil the Caversham party, as Boylan's team tackled like tigers, made some impressive breaks, led by the spring-heeled Tim Dalman, and allowed little sight of goal for the red forwards.
It took a ground-hugging snap shot by former Golden Boot striker Tim Cook, which threaded through the Roslyn defence and past unsighted keeper Nathan Watt, to put Caversham ahead after 23 minutes.
Minutes later, referee Jeff Clamp was handily placed to judge a Tim Witten-Sagga tackle worth a penalty and Robbie Deeley drilled Caversham into a 2-0 lead at half-time.
Hopes of a Roslyn fightback were dashed when, almost from the restart, Hamish Chang punished a retreating defence by lacing a superb 25m shot past Watt.
Caversham then showed its true pedigree with a superb goal that that swept the length of the field.
Rhys Henderson headed the ball out of defence to Deeley, whose first-time pass allowed the flying Cook to take a touch and drive Caversham into a 4-0 lead.
Roslyn had its moments, when player-coach Boylan headed just over the crossbar and Tom Connor let fly at goal, but Caversham kept turning the screw and Roslyn's defence became increasingly ragged.
Deeley got his second goal from broken play, and another weak clearance allowed Henderson to drill the ball through a crowded goalmouth for the sixth goal of the match.
In retrospect, the Caversham performance was similar to many games this season, where crisp passing, clever running and deadly finishing unhinged the opposition.
There must also be recognition for a defence well led by Tim Horner and import Chris Jenkinson which conceded less than a goal per game, and the astute touchline team of coach Fleming and strategist Andy Deeley, who did not put a collective foot wrong.
