Chelsea matched the achievements of Manchester United's iconic Busby Babes in the 1950s by winning the FA Youth Cup for a fifth consecutive year.
Those United sides, featuring the likes of Duncan Edwards and Bobby Charlton, won the first five editions of the tournament between 1953 and 1957.
Chelsea's academy have now matched that feat thanks to this thrashing of London rivals Arsenal and this was also their seventh Youth Cup triumph since 2010.
Leading 3-1 from Friday's first leg at Stamford Bridge, Chelsea effectively killed the contest 11 minutes in when Scottish midfielder Billy Gilmour cushioned a half-clearance on his chest and rifled home from 18 yards.
Callum Hudson-Odoi, impressive in England's Under-17 World Cup win last year, rammed home a second on the hour mark following Daishawn Redan's cross.
Hudson-Odoi, who has played four times for Antonio Conte's first team this season, then turned provider, cutting the ball back for substitute Tino Anjorin to make it three.
And the pair swapped roles as Anjorin rolled in Hudson-Odoi, who showed fine composure to tuck away the fourth.
BertrandChelsea
76
We are Chelsea and our blood is blue. The senior team will do claim this year's FA cup too