The Red Devils striker admitted that the way his side lost the title last season was hard to take, but they thoroughly deserved the title this time around
The England international, who played a deeper, more central role in the win, provided Robin van Persie with a beautifully-weighted ball as the Dutchman scored the team's second of the night.
The Red Devils now must win their remaining four games to break Chelsea's record of 95 points in one season, and Rooney feels they deserve their place at the summit of English football this season.
"It's what we've worked for all year, we deserve it. We started really fast today, it was a fantastic night, and we're really pleased," Rooney told Sky Sports.
"When you lose the title the way we did it was hard to take. we all dug in deep, worked together, the squad did fantastic to put ourselves in position and we finished the job off.
"You can never take anything for granted in football."
When asked what makes Manchester United so special, Rooney said: "The manager's got a great desire and a great winning mentality and we've got fantastic players. We all dug in together and we deserve it I think.
"Last season we had a lot of young players and they've moved on this season.
"It's been a great season for me, we've won the league tittle, that's what you play for, to win trophies, and i'm delighted."