(CNN) -- Holders Tottenham believe they will be back at Wembley to defend the League Cup after battling to defeat surprise side Burnley 4-1 in their semifinal first leg at White Hart Lane on Tuesday.
Burnley goalkeeper Brian Jensen was beaten four times in the second half of the semifinal first leg.
Spurs paraded £15 million new signing Jermain Defoe before kickoff but the night threatened to go sour when Championship club Burnley took a shock lead after 15 minutes through Martin Paterson.
Burnley had already eliminated London top flight trio Fulham, Chelsea and Arsenal but they have it all to do in the return leg in two weeks time after a storming second half comeback by Spurs.
Jamie O'Hara was sent on for the re-start in place of ineffective David Bentley and within two minutes fired over a corner for Michael Dawson to head Spurs level.
Five minutes later the midfielder shot through goalkeeper Brian Jensen's legs and Roman Pavlyuchenko added a third goal after 65 minutes to maintain his record of scoring in every round of the competition.
Burnley defender Michael Duff's own goal three minutes later completed the misery for Owen Coyle's men, heading a free kick by O'Hara past his own goalkeeper.
The scoreline did not do the Clarets justice for their first-half effort that was inspired by former Manchester United forward Chris Eagles who had already gone wide with one effort before he set up the opener for Paterson.
Eagles seized on the ball up on the right and squeezed between Gareth Bale and Bentley before crossing to the far post where the unmarked Paterson had an easy task from five meters.
It could have been worse for Spurs when Eagles put over another cross nine minutes later, with Robbie Blake glancing a header just past Heurelho Gomes' upright.
Spurs finally found their touch and it took goalkeeper Brian Jensen to keep the scores level when Jonathan Woodgate headed the ball back into the six-yard box following a Bentley corner.
Jensen was at full stretch to keep out Pavlyuchenko at point-blank range, but it was Spurs' only clear opportunity of a dismal first half.
Manager Harry Redknapp found the winning formula at the interval with Spurs now firm favorites to go on and face Manchester United or Derby at Wembley on March 1.