In Pictures: Treble-hit Nick gifts Arsenal easy win
Arsenal 5 Leyton Orient 0: Nicklas Bendtner fired a hat-trick as Arsenal shook off their Carling Cup final disappointment to set up a clash against Manchester United in the last eight of the FA Cup with a 5-0 thrashing of Leyton Orient.
The Gunners showed no sign of a hangover from the shock of losing to Birmingham at Wembley on Sunday as the npower League One side were brushed aside.
Marouane Chamakh set Arsene Wenger's men on their way in the seventh minute, before Bendtner's double put the result beyond doubt ahead of the interval.
The Denmark striker completed his treble from the penalty spot, with full-back Gael Clichy netting with 15 minutes left.
Centre-back Laurent Koscielny was, officially at least, rested because of a minor hamstring problem, while keeper Wojciech Szczesny — the other guilty party in Sunday's costly mix-up which gifted the Blues a last-gasp winner — warmed the bench.
Samir Nasri, Jack Wilshere and Andrey Arshavin were also among the substitutes should they be needed to help get the job done at the second time of asking.
Orient were cheered on by some 9,000 fans, most having travelled more in hope than genuine expectation of a cup shock which would be off the scale compared to Sunday's result at Wembley.
However, Chamakh settled any early nerves when he put Arsenal ahead from close range.
Thomas Rosicky darted into the right side of the Orient box before cutting the ball back to the penalty spot, where Chamakh guided a shot into the bottom left corner to take his tally to 12.
Orient almost produced a response when Ben Chorley, sent an angled volley goalwards from a corner which was deflected over.
The away fans thought Alex Revell had steered in an equaliser from Charlie Daniels' cross, but the ball rippled the side-netting.
Arsenal were soon back on the offensive and doubled their lead on the half-hour when Bendtner sent Kieran Gibbs' cross back into the top-left corner with a looping header from 12 yards.
It was 3-0 in the 43rd minute when Bendtner cut in and curled a low strike into the far corner, for his sixth goal of the season.
Orient refused to lay down but Arsenal were then awarded a penalty on 61 minutes when Gibbs was tripped by Revell.
During the break in play, Rosicky, who had picked up an injury, was replaced by Nasri. Bendtner smashed the spot-kick into the bottom-left corner to complete his treble.
Clichy then came off the bench to drill number five into the bottom corner for his first goal since November 2008 as Arsene Wenger's men booked a mouth-watering clash against their Barclays Premier League title rivals at Old Trafford on March 12.