Antonio Rudiger proceeded with his propensity for scoring against the Foxes with a looking, circling header from a corner whipped in by ex-Leicester wing-back Ben Chilwell.
Another previous Foxes top pick, midfielder N’Golo Kante, multiplied the lead by terminating home from the edge of the case in the wake of being permitted to meander 30 yards practically unchallenged.
Chelsea might have been far away by half-time, Chilwell touching the bar when he ought to have scored from a mid one-on-one with Kasper Schmeichel , who later denied Kante with his legs.
Leicester offered more as an assaulting power after the break as Edouard Mendy made an astounding recovery to tip away a wild long-range shot from Daniel Amartey and Jamie Vardy headed over from short proximity.
However, Chelsea, who extended their lead at the top to six focuses before Saturday’s later openers, might have had more as Schmeichel saved sagaciously from Chilwell and Callum Hudson-Odoi twisted creeps over.
The Blues had additionally three objectives precluded for offside, the associate’s banner thwarting Hudson-Odoi, Reece James and Christian Pulisic, who covered his return from injury by opening home Chelsea’s third from Hakim Ziyech’s cross.
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