Goals either side of half-time from Matty Phillips and Hal Robson-Kanu returned Albion to the top of the Sky Bet Championship table with a 2-0 win at Stoke.
The Baggies were in control from the eighth minute when Phillips fired home following a fantastic flowing move.
And, despite a brief spell of City pressure after the interval, the three points were secured midway through the second-half when Robson-Kanu converted a penalty in front of the travelling supporters.
The triumph ensures Albion are now five unbeaten and back above Preston North End, Leeds United and Swansea City ahead of Saturday’s trip to Hull.
Slaven Bilić made one change to the team that drew with Charlton nine days earlier, with Conor Townsend coming in for the suspended Nathan Ferguson.
And his men made the perfect start. A brilliant piece of play down the left ended in Grady Diangana pulling the ball across the box for Phillips to finish off and claim his sixth of a so-far prolific campaign.
Stoke tried to fight back straight away, Sam Vokes heading tamely into the arms of Sam Johnstone, while the Baggies aimed to extend their lead down the other end - Darnell Furlong firing just wide from outside the area.
Albion’s right-back had another go at goal in what was an otherwise chance-less remainder of the first-half, this time curling over, as the away side took their narrow advantage into the break.
City’s temporary coaching team rallied the troops at half-time and they came out fighting, but Cameron Carter-Vickers and Badou Ndiaye couldn’t keep their powerful shots down.
And with 69 minutes on the clock their task was made even harder when Diangana was brought down by Carter-Vickers 15 yards out, and substitute Robson-Kanu confidently slid his spot-kick into the bottom corner to claim his third in four games.
Albion saw out the remaining 20 minutes with relative ease to keep a clean sheet as well as claim all three points.
ALBION: Johnstone, Furlong, Ajayi, Bartley, Townsend; Livermore, Sawyers; Phillips (Brunt 83), Pereira (Krovinović 63), Diangana; Austin (Robson-Kanu 63).
Substitutes: Bond, Hegazi, Edwards, Zohore.