United will travel to Bolton Wanderers in the third round of the FA Youth Cup, after putting nine goals past Worcester City at Bramall Lane on Wednesday night.
In front Nigel Clough and his coaching staff, Dominic Calvert-Lewin and Jake Eyre, a second-half substitute who didn't finish the game because of an injury, both scored hat-tricks, with Daniel Cockerline, Ben Whiteman and Jason Paling also getting on the scoresheet.
After a spirited opening from the non-league visitors, United took the lead in the 11th minute. A long throw from Scarisbrick bounced off Cockerline before Khan teed up CALVERT-LEWIN who calmly chipped the goalkeeper with the outside of his right-foot from the edge of the area.
Eight minutes later the young Blades doubled the advantage and it was CALVERT-LEWIN again, he rose highest to head home an inswinging Khan cross from the left after neat play by Paling.
In the 34th minute, the hosts were forced into a change when Reed limped off and was replaced by Whiteman. On the stroke of half-time, having seen a deflected header hit the post moments earlier, COCKERLINE slid in at the back post to make it three after Paling and Calvert-Lewin had combined down the left-wing, with the latter claiming an assist.
United picked up where they had left off after the break with WHITEMAN making it four in the 54th minute, Coustrain, with his last touch of the evening playing the decisive ball to the midfield, who finished with ease.
Just after the hour mark, EYRE got in on the act deflecting the ball home after Cockerline had beat four defenders on a marauding run down the left. EYRE got his second and United's sixth in the 64th minute, this time the striker finished confidently after racing on to Cockerline's flick on from Scarisbrick's long ball forward.
CALVERT-LEWIN was the first to get his hat-trick in the 78th minute, firing home from inside the penalty area, after Wright's cross wasn't cleared properly. Three minutes later EYRE added his third to make it eight, getting across his marker to apply the finishing touch to Khan's inviting centre.
With the final kick of the game United rounded off the scoring to make it nine. Excellent interchange played involving Calvert-Lewin, Khan and Wright, saw PALING freed on the left and despite the heavy pitch he managed to slide the ball home with his left foot.
Blades: Owen, Scarisbrick, Paling, Reed (Whiteman 34), Evans, Banton, Calvert-Lewin, Dimaio, Cockerline (Wright 69), Khan, Coustrain (Eyre 54)
Unused: Eastwood, Ptak.