Jon Obika netted a hat-tricked as our youngsters eased past Sheffield United at White Hart Lane to book their place in the fourth round of the FA Youth Cup.
Alex Inglethorpe's side went into the game sitting top of the FA Premier Academy League having lost only once all season.
And the confidence was there for all to see - especially in Obika and strike partner Ryan Mason, who both made their First Team debuts in the UEFA Cup last week.
It was the pair who many of the visitors' problems in the first half, and we had a chance to open the scoring in the first minute.
Obika showed his strength to hold off a couple of defenders in the penalty area before laying back to Andros Townsend on the edge of the box. The winger's shot was saved, and Mason put the rebound over the bar.
The Academy's leading goalscorer was presented with another opportunity after five minutes having been put through by Yaser Kasim, but United captain Nathan Foster did just enough to deflect the shot into his goalkeeper's hands.
Stopper Kang Ho Lee was also equal to an Obika effort on 12 minutes before the big striker broke the deadlock two minutes later.
Calum Butcher played a long ball from the back and he got in between the defenders to latch on and put past the advancing keeper.
It was nothing less than we deserved, and Inglethorpe's men continued to dominate the opening 45 minutes.
We had a decent penalty appeal turned down on 34 minutes when Mason appeared to be upended by Lee in the box having been put through by Adam Smith, and Obika was put through again three minutes before the break only to put his effort wide.
The visitors came out for the second half looking much more organised, but we continued to control the game.
Before the second goal, we were mainly restricted to long-range efforts with Kasim and Smith testing Lee with the best of them.
And when we did get behind the United defence to double our lead on 65 minutes, it was through the Blades' own doing.
Obika caught Kingsley James in possession on the edge of the box and went on to coolly slot home his ninth of the season.
Belgian youth international Paul-Jose Mpuku was introduced as a replacement for Dean Parrett three minutes later, and it was his industry that created our and Obika's third 15 minutes from time.
Some great close control and skill on the edge of the box occupied the defence before a gap opened up for the striker, and he was played in to calmly tuck home and put the game out of sight.
And it could have got even better for Obika when he was once again played in by M'Puku three minutes from the end, only for Lee to come off his line to thwart him.
But Jon will settle for three on a great night for him, and a great night for our Under-18 side who on this evidence look real contenders for the trophy this year.
Spurs (4-4-1-1): Jansson; Smith, Caulker (Byrne, 81), Butcher, Cox; Parrett (M'Puku, 68), Kasim (Ekim, 81), Bostock, Townsend; Mason; Obika
Subs not used: Butler, Oyenugu
Sheff Utd (4-5-1): Lee; Brown, Galloway, Foster, Roe; Adams (Gregory, 80), Smith (Lammy, 85), James, Gee, Chappel (Lyn, 57); Slew
Subs not used: Billard, Eckhardt