Ben Wilkinson's young blues were in control from the get-go at the City Football Academy and, but for a fine save from Radek Vetek, Dire Mebude would have handed us the lead inside 10 seconds.
However, City weren't to be denied for much longer, with Luca Barrington tapping home at the far post just after the half hour before Rico Lewis doubled our advantage with a vicious low drive in a devastating three-minute spell.
Our young charges kept their foot firmly on the pedal after the restart and were rewarded for that intensity when Joel Ndala tapped home a third in the 77th minute.
The substitute was in the right place at the right time to bury the game's final goal from Mebude's rebounded effort after City had stolen possession inside the United half, adding further gloss to an already impressive scoreline.
Enjoy the best of the action from our Under-18 Premier League curtain-raiser via the video above...