The Poland international was his usual unforgiving self at the Allianz Arena, rattling off a stunning hat-trick to move back to the top of the scoring charts alongside Borussia Dortmund counterpart Pierre-Emerick Aubameyang on 24 goals for the campaign.
Watch: Robert Lewandowski on Bayern's insatiable appetite for goals
"What more can I say about Lewandowski?," asked Bayern head coach Carlo Ancelotti following Saturday's rampant 6-0 win. "I'm fortunate to have this player in just about every game."
The proof is in the pudding. Bayern are unbeaten in their last 20 matches in all competitions dating back to the 3-2 defeat at Rostov in the group stage of the UEFA Champions League on 23 November 2016. In that time, Ancelotti's free-scoring troupe have plundered an eye-watering 58 goals, with Lewandowski helping himself to 22 of them.
"We showed that we have a lot of fun together as a team," Lewandowski said after the game, nonchalantly deflecting attention away from his latest match-winning salvo. "It was important to show that we were in good shape following an international break. Whether it's in the Bundesliga or the Champions League we want to maintain our form. I'm very happy today and we enjoyed the game."
With Bayern 13 points clear at the Bundesliga summit and Lewandowski - the reigning Torschutzenkönig - leading the scoring charts, it is business as usual in the Bavarian capital heading into the final straight. The defending champions are already assured of Champions League football next season, and could even have a fifth successive Bundesliga title wrapped up in under three weeks' time.
"We know what it means to play in the Bundesliga, even if we're already 13 points in front," Lewandowski explained when quizzed on Bayern's trademark champion spirit. "We have to give our all in the Bundesliga, even if we're already 2-0 or 3-0 up. We want to keep playing consistently. That's the only way to stay clear until the end of the season."
There are a couple of potential bumps in the road up ahead - the midweek trip to third-in-the-table Hoffenheim comes just four days before Der Klassiker against Dortmund - but Bayern have seldom been ones to relinquish pole. Fuelled by the goals of a certain Warsaw native, the chequered flag is theirs for the taking.