The England striker scored twice as United coasted to a 3-0 Premier League triumph at Villa Park to ease the pressure on manager David Moyes.
United had slumped to defeats against Everton and Newcastle United in their last two top-flight games, but never looked back on Sunday after Welbeck scored twice in the space of three first-half minutes.
Welbeck told Sky Sports: "I think it was a good all-round team performance and everyone got together and played some good football.
"They were two good finishes and that's where I want to be, playing up top, but I'm just happy to play my part.
"Now we've set the platform and we really want to build on it."
The midfielder said: "It plays on your mind as a midfielder when you're not scoring goals. I think there was a year's worth of celebrating when I scored.
"I think I passed the ball well and played well today."
