Academy graduates Dane Scarlett, Damola Ajayi and Mikey Moore scored their first Tottenham goals to secure their side's place in the Europa League last 16 with a 3-0 win over Elfsborg in north London.
Scarlett replaced an injured Radu Dragusin, who had himself been introduced at half-time, to latch on to an inswinging Dejan Kulusevski cross and head home for the breakthrough.
Ajayi, who was introduced in the 81st minute, took just over three minutes to mark his debut with a goal, while Moore found the back of the net in injury time to cap a perfect evening for the Spurs academy.
The win secured fourth spot, meaning Tottenham avoid the play-offs and will look forward to a round-of-16 tie against one of Union Saint-Gilloise, AZ Alkmaar, Real Sociedad or Olympiakos.
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Spurs were frustrated during the early exchanges by an Elfsborg buoyed by a vibrant travelling support, who were watching the Swedish side play only their second competitive game since December 12.
Tottenham's early search for an opener was thwarted by Elfsborg goalkeeper Isak Pettersson, who kept out Pape Sarr and Moore in quick succession with a pair of point-blank stops.
The half-time interval brought changes for Spurs with Micky van de Ven, who made his return to the side from injury, replaced by Dragusin, while Heung-Min Son and Rodrigo Bentancur also made way.
While the mounting injuries will concern Ange Postecoglou, Tottenham's youngsters delivered to tee off an important run of games. They travel to Brentford on Sunday, looking to end a run of four successive Premier League losses, before a trip to Liverpool in the second leg of their Carabao Cup semi-final, with both games live on Sky Sports.
Spurs youngsters take centre stage
At 17 years and 172 days old, Mikey Moore became England's youngest scorer in major European competition, breaking Jimmy Greaves' record (17y 245d) set in October 1957 for the London XI against Lausanne-Sport.
Courtesy of goals from Dane Scarlett (20y 312d), Damola Ajayi (19y 34d) and Mikey Moore (17y 172d), Spurs became the first English side to have three scorers under the age of 21 in a major European match since Arsenal in October 2007 vs Slavia Prague (Theo Walcott, Nicklas Bendtner and Cesc Fabregas).
At 19 years and 34 days, Damola Ajayi became the youngest sub to score for Tottenham in major European competition since Harry Kane against Shamrock Rovers in December 2011 (18y 140d).
Archie Gray made his eighth start in the Europa League, the most by an English player aged 18 or younger. The only players with more starts aged 18 or under in a single season are Adam Maher in 2011/12 for AZ (12) and Romelu Lukaku in 2009/10 for Anderlecht (9).
Ange: 'Tottenham lads' scoring is great for the club
Spurs boss Ange Postecoglou:
"I keep saying that it's been a pretty tough period, particularly in terms of our league form. But there's still been real growth, I believe. It will all come to fruition at a point. I'm just so certain and bullish about that.
"The young players, the growth in our whole group is going to be enormous. It will bear fruit, I've got no doubt about that.
"But right now it's about trying to address the issues we've got at hand. Those three boys and others who've played for us were probably in the terraces at one time so our fans can relate to that.
"We're in a tough spot in the league but I think that would be hugely enjoyable for everyone, just the fact that three young boys, Tottenham lads, have scored on a European night. I think it's just great for the club."
Final Europa League table
Here's how the Europa League has finished after eight rounds of fixtures:
When is the Europa League knockout stage?
Knockout play-offs: February 13 and February 20, 2025
Round of 16: March 6 and March 13, 2025
Quarter-finals: April 10 and April 17, 2025
Semi-finals: May 1 and May 8, 2025
Final: May 21, 2025
Story of the match in stats