Peter Odemwingie's double helped West Brom clinch their first home win in three months as they overpowered below-par Sunderland 4-0 in a Barclays Premier League clash at the Hawthorns.
Odemwingie followed up his hat-trick against Wolves with another impressive performance with James Morrison and Keith Andrews the other Baggies marksmen.
Roy Hodgson's side, who had collected only one point from their previous six home games, dominated against the previously on-form Black Cats.
Odemwingie needed only three minutes to break the deadlock. Youssouf Mulumbu supplied a teasing cross from the left of the Sunderland box and Odemwingie got in front of Kieran Richardson to send his glancing header past Simon Mignolet.
Albion dominated possession and midfielder Andrews tested Mignolet with a dipping drive. It was 26 minutes before the visitors had their first shot on goal and then Craig Gardner dragged his low drive well wide.
Albion continued to play with purpose and Mignolet turned aside a Jonas Olsson header from a Steven Reid free-kick. Then Mignolet parried a curling Morrison attempt after a period of neat one-touch football.
But Albion's perseverance paid off with Morrison doubling their lead after 41 minutes, perfectly placed to head home a fine cross from Jerome Thomas from close range.
Sunderland's attempts to push on left them prone to being caught on the counter-attack and after 49 minutes Odemwingie put Albion 3-0 ahead.
Ben Foster's quick throw out to Morrison left Albion in a two versus two attacking position and they took full advantage. Morrison picked out the run of Marc-Antoine Fortune who squared the ball across the box to Odemwingie who made no mistake with a low drive.
Gardner had a shot blocked before Sunderland's Michael Turner cleared a goal-bound shot from Fortune and Andrews made it 4-0 in injury-time with a curling shot.