NEC Harlequins Under 19's lifted some of the gloom cast over the club by the relegation of their senior side from the Premiership by capturing the National Colts Cup at Bedford on Monday (2nd May).
They struggled for rhythm early on but ultimately had too much talent behind the scrum for opponents Moseley to handle, as fly half Mike Brown led the way with a try in each half.
Full back Charlie Amesbury and number eight Andy Hodgkins also scored with Brown kicking two conversions, as Moseley couldn't add to Harry Law's early penalty at Goldington Road.
"Moseley were very competitive and we've been made to work hard to win it, particularly without some of our England players," said Quins academy manager Tony Russ. "What this result does show is how many good young players we've got coming through."
Quins, who kept faith in the side that won the semi-final without England Under 19 stars Alex Rogers and James Inglis, briefly trailed after an abrasive opening spell from the Moseley pack earned them penalty, which Law converted in the fourth minute.
Quins then edged in front when Brown stretched over on the right after a great break from impressive wing Kiba Richards five minutes later.
However, both sides were giving possession away in a scrappy half that flared up with first Law and then Quins captain George Robson sin binned by Yorkshire referee Mark Wilson.
Robson returned immediately after the break and his side took control with three tries in 20 minutes as Moseley started to tire. Hodgkins scored after scrum half Steven Jay's dart down the blindside, and Brown grabbed his second after Richards had shredded the cover from long range.
Amesbury scored the beat of the lot with a sidestep past the final defender. Brown's two conversions put Quins 21 points clear going into the last 15 minutes.
Prop Rhydian Smith and flanker Sam Sylverster-Webb impressed up front for Moseley, who couldn't turn their early dominance into points.
"I just felt Quins were a little bit stronger than us and maybe we kicked too much ball away," said Dave Ireland, Moseley's chairman of development. "We kept it close for three-quarters of the game and didn't really take advantage of some of the chances we had."
NEC Harlequins Under 19's XV: 15. Charlie Amesbury, 14. Kiba Richards, 13. Adam Thompstone, 12. Ben Young, 11. Jonny Wehbe, 10. Mike Brown, 9. Steve Jay, 1. Rob Cooper, 2. Chris Turner, 3. Mark Abel, 4. Alex Ayling, 5. George Robson (Capt.), 6. Jamie Redmanye, 7. Darren Clayton, 8. Andy Hodgkins
Replacements: 16. Matt Surman, 17. Joe Reid, 18. James Inglis, 19. Ben Woolf, 20. Richard Parker, 21. Chris Butt , 22. Dene Richards
During week commencing 22nd April Harlequins will launch an innovative, new Membership Scheme which will replace the existing Season Ticket Holder Programme. Further details of the scheme will be announced in due course.