The team that scored 82 goals in 28 matches last season simply picked up where they left off to dominate proceedings at the Recreation Ground.
It took about 20 minutes for the lads to fully click into gear - by which time they were 1-0 down - but when they did, they ran the Blues ragged.
A purple patch between 20-40 minutes produced eight chances and three goals to take a decisive lead into half-time.
When Shaq Coulthirst buried from close range for 4-1 10 minutes into the second half it was game over.
It was evident from the first whistle that this was going to be an open game, full of chances and it took just 35 seconds for the opening shot as Nabil Bentaleb dragged his effort wide from 25 yards.
Yago Falque should have done better after Harry Kane charged down Mitchell Beeney's attempted clearance and Jordan Archer had to be alert at the other end as Isiah Brown broke through centrally.
Chelsea opened the scoring on 18 minutes. Jeremie Boga was pivotal, driving in from the left before finding Ruben Loftus Cheek, who was bundled over by Giancarlo Gallifuoco. Josh McEachran made no mistake from the penalty spot.
The response was swift. Kane curled a free-kick onto the roof of the net and as we found our rhythm, Falque rattled the underside of the crossbar from the right angle.
Kane drilled a snapshot straight at Beeney and then set-up the equaliser on 29 minutes. We won possession centrally, Coulthirst went wide left to Kane and he picked out Falque who didn't panic under pressure, worked a yard of space and converted from 10 yards.
Minutes later and the same player sliced a decent chance wide and Kane curled just the wrong side of the post on 37 minutes.
Brown released the pressure by finding John Swift's run from deep and Archer made a smart save down to his right.
It was only a temporary break for the Blues' defence, however, as seconds later Bentaleb found Coulthirst's run inside, Beeney did well to rush out and block only for the ball to fall to Falque on the right corner of the box. He controlled and drilled back into the empty net with precision.
A minute later and the lads were celebrating a third goal, and another clinical finish. This time Falque picked out Kane's dart to the right of Nathan Ake and the striker took the ball in his stride before rifling past Beeney.
An entertaining half ended in the second minute of added time when Archer touched Boga's free-kick away from the top corner.
The second half started quietly. Tom Carroll forced the first save of the half from Beeney on 54 minutes and two minutes later, it was 4-1.
Gallifuoco found a lovely-angled pass inside to Kane, he struck the foot of the post and Coulthirst was alive to the rebound, burying the ball from close range.
We enjoyed long spells of possession but the next chance didn't arrive until 12 minutes from time when Bentaleb showed quick feet to work the space before firing just over.
That sparked another rush of chances as Beeney just managed to turn Kane's shot wide, Gallifuoco headed straight at the goalkeeper and Kane again angled an effort inches wide.
Chelsea grabbed a consolation through Brown on 88 minutes and there was still time for another two chances as substitute Darren McQueen burst through twice, only to be denied by Beeney.
Chelsea (4-2-3-1): Beeney; Christensen, Chalobah, Ake, Wright (Ssewankambo, 71); Cheek, Swift (Feruz, 46); Kiwomya, McEachran (Baker, 34), Boga; Brown. Unused subs: Killip, Davey.
Spurs (4-3-3): Archer; Fredericks, Ball, Stewart (Lameiras, 66), A McQueen (Ward, 74); Bentaleb, Carroll, Gallifuoco; Falque, Kane, Coulthirst (D McQueen, 77). Unused subs: Miles, McEneff.