Adnan Januzaj opened the scoring with his first Academy goal for the Reds, heading home from Charni Ekangamene's looping left-wing cross in the 28th minute. The score remained 1-0 until just past the hour mark when Jack Barmby, United's scorer in last Friday's defeat at Liverpool, unleashed a ferocious drive past Crewe goalkeeper Ben Garratt.
Gyliano van Velzen put United 3-0 up when he latched onto a fine pass from Kenji Gorre and shot goalwards with the ball rolling over the line after Garratt got a hand to it. Jack Rudge added a fourth five minutes later with another long-range strike following a lay-off by substitute Paddy McNair.
The only blemish, perhaps, was the consolation goal conceded to Crewe's Michael Koral four minutes from time, thus denying Joe Coll a clean sheet. However, after five games without a win, the Reds can feel well pleased with the victory with Garratt also pulling off saves to deny the likes of the elegant Januzaj, van Velzen and McNair.
United: Coll, Love, Ekangamene (Wilkinson, 65), Blackett, McCullough, Hendrie, Gorre, Rudge, van Velzen, Januzaj, Barmby (McNair, 71). Subs not used: Jacob, Pearson, Daehli.