A Christopher Nkunku hatrick, an own goal and a Pedro Neto tap-in saw the Blues progress to the fourth round of the Carabao Cup.
Chelsea, as expected, started well, with the first goal coming just eight minutes into proceedings.
Summer signing Joao Felix linked up well with Nkunku to give Enzo Maresca's men the lead.
It would not take long for the Frenchman to find his second. Malo Gusto played a low, driven cross into the box, which the 26-year-old expertly flicked into the back of the net.
Just shy of the 30 minute mark, Felix took a freekick that was calmly whipped over the wall to extend the West Londoners lead to three.
However, the goal was deemed an own goal after the ball rebounded off the post and onto the hapless keeper, Paul Farman.
After the interval, Chelsea continued how they finished the first half.
Mykhailo Mudryk dashed down the left-hand side before putting it on a plate for Pedro Neto to touch in to extend it to four.
Just before Nkunku was substituted, the striker pressed Farman into a mistake and was rewarded with a well-deserved hat trick.
After that performance, Maresca could have some thinking to do before picking his starting eleven against Brighton.
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Chelsea's second attacking options are just as strong as the first
A front four containing Neto, Felix, Nkunku, and Mudryk is hard to argue against not starting in the Premier League, with each individual quality they can produce.
Three goals from the French international showed that the striker is more than just a rotation option and can easily start for the Blues.
While Felix can be a creator and provider just behind the striker, the Portugal international showed how a nice relationship has already formed between himself and Nkunku.
Meanwhile, on the right wing in his preferred position, Neto showed glimpses of why he can start ahead of Noni Madueke.
The 24-year-old was unafraid to take his man on and was always driving forward, willing to get into the box. The former Wolves man got his reward with a well-earned goal.
Meanwhile, Mudryk got a deserved assist for his partner on the wing. The Ukrainian drove hard down the left all game while creating chances for his fellow teammates.
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Carney Chukwuemeka might make Maresca rethink his role in the squad.
In a 14-minute cameo, Carney Chukwuemeka showed some exciting signs when he entered the scene in the 76th minute.
The 20-year-old looked like a man with a point to prove. He showed his ability to beat a man and produced some nice link-up play with fellow substitute Marc Guiu.
Chukwuemeka was ever demanding going forward on the ball, beating his opponents before always looking to pass the ball forward.
The former Aston Villa man produced a smart through ball for Guiu, who unfortunately could not steer it home.
After just a short cameo, it might have given Maresca another reason to provide the youngster with more minutes.
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Tyrique George still needs time to develop
Tyrique George is just 18-years-old, and it is clear why Chelsea staff regard the youngster so highly.
His eagerness to get onto the ball was apparent to see, and he was not afraid to show his ability to take on a man.
However, it is also clear that George is still developing, and has room to improve, which is only good for someone so young.
A golden opportunity fell to the young winger after Nkunku played him through, but the Cobham academy graduate could not finish it home.
It is clear that the 18-year-old is not far away from first-team action, but a loan could be a possibility in the January window.
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Christopher Nkunku is back to his best
Showing impacts from the bench so far this season, Nkunku showed his true worth against Barrow.
So far this season, the Frenchman has scored six goals in 330 minutes, showing that he is firing on all cylinders.
It is not only the goals that show the former RB Leipzig man is back, but his overall game is impressive.
The striker linked up well with his teammates, worked hard from the front, and led by example.
His first goal showed his willingness to make runs in behind and calmly slot it past the Barrow keeper.
As well as the clever flick for the second, his third was just as impressive.
Nkunku showed a desire and hunger even when the Blues were 4-0 up to find another for his well-earned hat trick.
Enzo Maresca will undoubtedly have a tough choice come Saturday for who starts against unbeaten Brighton.
