Aberdeen strangled the life out of Motherwell before exacting revenge for their League Cup exit thanks to Andrew Considine’s scrambled winner.
Stephen Robinson’s Well had thrilled Fir Park in Thursday’s 3-0 win.
But it took 52 minutes before either goalkeeper had a save of note to make this time, Aberdeen’s Joe Lewis pushing away a Chris Cadden drive.
Five minutes later, Considine pounced after a cute Ryan Christie back-heel came back off the post.
Aberdeen survived late pressure to secure a fifth league win in succession over Well and move back up to second in the Scottish Premiership ahead of St Johnstone and two points behind reigning champions Celtic.
This time, Derek McInnes’ side managed to subdue the threat of Louis Moult, the striker he tried to sign this summer and who scored a double in Thursday’s League Cup tie, to ensure they remain unbeaten in the league this season.