(CNN) -- Three extra-time goals gave Arsenal a thumping 4-1 victory over north London rivals Tottenham Hotspur in their English League Cup third round tie Tuesday.
Two penalties from French international Sami Nasri and an emphatic strike by Russian star Andrey Arshavin turned the tie Arsenal's way at White Hart Lane.
Arsene Wenger's men dominated the first half and might have added to Henri Lansbury's 15th minuute strike, but Tottenham hit back after the break through substitute Robbie Keane.
Both sides had chances to avoid extra time, but it was the Gunners who took the game by the scruff of the neck to carve out a deserved victory.
Wenger and Tottenham manager Harry Redknapp both made numerous changes to give second string or developing players the chance of first team action but the rivalry between the neighbors insured a full-blooded affair.
Young Arsenal midfielder Jack Wiltshere, still only 18, pulled the strings in the first half and his cross found Lansbury unmarked to score the opener.
Tottenham were fortunate to survive other close shaves with Redknapp responding by bringing on the more experienced Aaron Lennon and Keane at the break.
It had the immediate effect as Keane beat the offside trap to beat Lukasz Fabianski with a low shot which he might have dealt with.
Keane also hit the post and a Wilshere free kick caused late chaos but it ended 1-1 in normal time.
But after five minutes of extra time the match was effectively over with Sebastien Bassong pulling back Nasri in the box, the Frenchman getting up to dispatch the penalty.
Almost immediately a similar incident saw Tottenham debutant Steven Caulker tug back Marouane Chamakh and Nasri was again deadly from the spot.
Arshavin's fourth after more Tottenham hesitancy in defense sealed the win and Arsenal's biggest win at White Hart Lane in 32 years.
Wenger, who watched the game from the stands after accepting a one-match touchline ban for arguing with an official in their 1-1 draw at Sunderland on Saturday, was full of praise for man of the match Wilshere.
"We know that he is an outstanding football player and has an outstanding future," he told Sky Sports.
In other third round ties Tuesday, West Ham beat Sunderland in an all-Premier League clash, while Owen Coyle's Bolton lost 1-0 to his former club Burnley.
Everton also crashed out on penalties at third-flight Brentford to continue their indifferent start to the season.