For the second week running the Clarets found a Premier League title challenger packing too much of a punch as Chelsea left Turf Moor with their unbeaten record this season intact.
Despite the heroic efforts of goalkeeper Joe Hart, nine goals conceded in two games has done little for Burnley’s goal difference as the gulf in status between the powerhouses of the division and the rest was again laid bare.
A first-half goal from Alvaro Morata and second-half strikes from a revitalised Ross Barkley, Willian and substitute Ruben Loftus-Cheek were enough for Chelsea to cruise to a fourth away win in five this season.
Burnley were unable to lay a glove on opponents who have been rejuvenated by manager Maurizio Sarri.
And Sean Dyche’s men must now dust themselves down for more manageable battles to come as they hit the road to face West Ham and Leicester City in search of points ahead of the next international break.
Robbie Brady’s first Premier League appearance since December was a welcome sight in the only change to the Clarets’ side that had lost to champions Manchester City a week previously, as Aaron Lennon dropped out of the squad through illness.
And the wingman, whose full debut for Burnley had brought him a spectacular equalising goal against Chelsea in January, 2017, was heavily involved in a bright start from the Clarets.
Brady saw one early effort blocked and then fizzed another just wide after goalkeeper Kepa Arrizabalaga had failed to deal with a cross from Matt Lowton.
With Johann Berg Gudmundsson stretching the Blues on the other flank and Steven Defour probing from deep, the Clarets made the Londoners work to get a foothold in the game.
But once they took command of the ball, Chelsea began to punch holes in Burnley’s back line, with Morata a central figure.
The Spain international saw Hart make a superb finger-tip save to keep out his header as he diverted the ball towards the top corner from Barkley’s attempted shot.
And then after Willian had curled an effort against the inside of a post, it was the same combination that created Chelsea’s opening goal.
Not for the first time N’Golo Kante got the Blues moving forward after Burnley lost possession before Barkley slipped through the perfect pass for Morata to slot home.
The striker could have completed a first-half hat-trick – dragging another shot wide after turning inside Ben Mee and then seeing Hart make another fine block – before a clash with James Tarkowski saw both players booked.
And in a bad-tempered end to the first half, Willian was then booked for diving as he tried to hoodwink referee Craig Pawson into awarding a penalty after going down through no contact from Lowton.
The better side of the Brazilian was still to come but not before Burnley had tried to respond with an upbeat start to the second half.
Again, though, Arrizabalaga wasn’t tested as neither of a couple of corners carried the threat which had seen Tarkowski head a Brady delivery just over the top when the score was 1-0.
And, as against City, the game was suddenly away and gone with two goals in the space of a damaging five minutes.
Barkley made it 2-0 when he rifled home a low shot from 25 yards after Kante had been the catalyst to another devastating counter-attack.
And Willian then got his goal when he cut in to curl an effort around a helpless Hart and into the bottom corner to underline the visitors’ dominance.
Dyche had sent on Chris Wood and Ashley Barnes to try and give Chelsea something to think about at the other end and then, with just over a quarter of an hour to go, was forced into a third substitution to end Jack Cork’s proud record.
The midfielder hadn’t missed a minute of Premier League football in 47 games since joining the Clarets before the start of last season but was finally beaten by an ankle injury to put another dampener on a tough afternoon.
Hart came out of it with great credit, making another brilliant save to tip substitute Olivier Giroud's header onto the crossbar as the World Cup winner added a further cutting edge to the Blues late on.
But even Hart at his best was powerless to stop Chelsea adding a fourth in stoppage time when Ruben Loftus-Cheek followed up his mid-week hat-trick in the Europa League by side-footing home to widen the gap still further as the Blues became the first side to score four at Turf Moor for eight years.
Burnley: Hart, Lowton, Tarkowski, Mee, Taylor, Berg Gudmundsson, Defour, Cork (Westwood 63), Brady, Hendrick (Barnes 65), Vokes (Wood 59). Substitutes: Heaton, Bardsley, Vydra, Long.
Booked: Tarkowski, Hendrick, Brady, Gudmundsson
Chelsea: Arrizabalaga, Azpilicueta, Rudiger, Luiz, Alonso, Kante, Jorginho (Fabregas 78), Barkley, Willian, Pedro (Loftus-Cheek 30), Morata (Giroud 74). Substitutes: Caballero, Kovacic, Zappacosta, Cahill.
Booked: Morata, Willian
Referee: Craig Pawson