Milton Keynes - A first-half Oscar hat-trick together with Eden Hazard's first goal of the season gave Chelsea a comfortable 5-1 victory at Milton Keynes Dons in the FA Cup on Sunday.
Chelsea remain undefeated in eight games under interim manager Guus Hiddink and this impressive fourth-round display confirmed the progress that they have made under the Dutchman.
The win ensures that Chelsea remain in contention to repeat the FA Cup success they enjoyed when Hiddink was last in interim charge of the club in 2009.
And the manager had every reason to be satisfied with the way his side eased their way to victory at Stadium MK, albeit against second-tier opposition.
Oscar's goals grabbed the attention, but Hazard's penalty, his first goal in 30 appearances for his club, came as a huge relief.
Burkinabe international Bertrand Traore was also on target with his first Chelsea goal.
Hiddink signalled his intentions by fielding a strong side, although he did take the opportunity to hand rare starts to left-back Baba Rahman and young midfielder Ruben Loftus-Cheek.
With loan signing Alexandre Pato not eligible to play and both Loic Remy and Radamel Falcao injured, Diego Costa led the line and his work alongside Oscar quickly nixed any chance of an upset.
After a dominant start, Chelsea took a 15th-minute lead courtesy of a defensive mistake.
An underhit back-pass by Kyle McFadzean allowed Costa to advance on goal and the striker unselfishly squared the ball for Oscar to finish into an empty net.
It was to MK Dons' credit that they responded positively and drew level six minutes later when Darren Potter's shot took a deflection off Nemanja Matic and looped over the leaping Thibaut Courtois.
However, the gulf in quality between the teams meant it was only a matter of time before Chelsea asserted their superiority, although goalkeeper David Martin did his best to hold them at bay, saving well from Hazard before Costa nicked the ball off the toe of Oscar in front of goal.
Another chance quickly came Oscar's way and this time the Brazilian made no mistake with a well-placed finish in the 32nd minute.
The playmaker, operating on the right on this occasion with Loftus-Cheek filling the central role, completed his hat-trick when he cut in from the left and found the corner of the goal with a well-placed right-foot shot.
The home side had offered little resistance and the pattern of the game was maintained after the break when Hazard was tripped by Potter in the 55th minute.
Chelsea skipper John Terry intervened to ensure Hazard took the penalty and the Belgium rolled the ball home to his obvious relief.
Substitute Traore then completed a routine victory for the visitors when he finished with a first-time shot after Hazard had chased Cesc Fabregas's pass out to the byline before setting up the Burkina Faso youngster.