United turned on the style to romp to three points at Liverpool on Saturday.
Paul McGuinness' side turned in a swaggering attacking display, as Oliver Norwood, Kiko Macheda and Ravel Morrison did the damage. But the Reds could have had more besides.
Ryan Tunnicliffe and the impressive Davide Petrucci both came close before skipper Norwood put the Reds ahead after 22 minutes with a delightful chip in off the crossbar.
Morrison then thundered an effort against the inside of Dean Bouzanis' post, while Reds keeper Conor Devlin saved smartly from David Amoo. But Italian front man Macheda doubled United's lead shortly before half-time when he latched onto Petrucci's cleverly disguised pass before unleashing a trademark poacher's finish.
United's dominance continued, with Morrison again going close and Macheda blazing off target. Finnish striker Lauri Dalla Valle halved the arrears on 64 minutes, converting from close range after United had failed to clear a corner, but Morrison struck with 10 minutes remaining to assure the Reds' victory.
Norwood and Macheda combined to feed the youngster in the area, and he coolly rounded Bouzanis before slotting into the empty net to complete a dominant display against their local rivals.
United: Devlin; Strickland, Thorpe, Wootton, Dudgeon; Morrison (Stewart 80), Norwood (c), Tunnicliffe, Brady (Ajose 74); Petrucci, Macheda.
Subs not used: James, Brandao, Gill.