Tottenham secured a place in the last 16 of the Champions League with a convincing victory over Werder Bremen at White Hart Lane.
Harry Redknapp's side, confidence buoyed by their dramatic comeback to win at Arsenal on Saturday, never needed to hit top gear to reach the knockout phase against the Bundesliga side, who have been ravaged by injuries and a loss of form.
Younes Kaboul, the match-winner at The Emirates, put Spurs on the path to victory early on with a side-footed volley from Aaron Lennon's cross.
And Luka Modric effectively ended the contest seconds before half-time when he kept his cool in the penalty area to beat Werder keeper Tim Wiese.
Spurs could even afford a penalty miss by the outstanding Gareth Bale, who saw his spot-kick saved by Wiese after Felix Kroos upended Modric as he raced into the area.
Bale twice hit the woodwork, but Crouch ended any slim hopes of a Werder comeback 11 minutes from time. Lennon was again the provider with a touch of trickery before offering Crouch the simplest of finishes.
Spurs may not have touched the heights of their home triumph against holders Inter Milan, but they have made impressive progress in a tough group.
And with qualification guaranteed with a game to spare, Spurs can now set their sights on securing top spot in Group A in their final match against FC Twente in the Netherlands in less than a fortnight.
Irrespective of the outcome of that encounter, Redknapp will be delighted at how Spurs have flourished in the Champions League and their smooth passage into the next stage of the competition.
Spurs may have been without Rafael van der Vaart, such a key figure this season, but they coped admirably without him as they took total control from the early stages and never looked like relinquishing their grip.
Spurs have proved they have the capacity to do damage - the problem may come when opponents of the highest quality attempt to inflict damage on them
It took only six minutes for Spurs to take the lead, and Kaboul showed his knack for a goal again by arriving to sweep Lennon's right-wing delivery past Wiese on the bounce.
Spurs were forced into a change when Jermaine Jenas limped off to be replaced by Wilson Palacios, but only the diminutive figure of Marko Marin hinted at any serious threat from Werder.
And Spurs moved closer to the knockout stage in first-half stoppage time when Modric applied a composed finish after Crouch headed Alan Hutton's cross into his path.
They picked up where they left off at the start of the second half, with Bale curling a free-kick against the bar and then providing a perfect cross for Crouch at the far post, only for the striker to see his header blocked on the line by Sebastian Prodl.
Bale, who has done no wrong recently, then showed he was fallible as he wasted an opportunity to extend Spurs' lead. He stepped up to take a penalty after Modric was fouled by Kroos, but his effort was unconvincing and Wiese made the block.
Redknapp then decided to make a change, introducing Jermain Defoe for Roman Pavlyuchenko after 66 minutes - the England striker forcing Wiese into action almost immediately with a powerful drive from 20 yards.
Bale continued to make inroads down the left flank, glancing the bar with a cross before Spurs got the third goal they deserved with 11 minutes left.
Lennon was simply too clever for Werder's defence, and he then offered up the perfect end product with a cross that allowed Crouch to score with ease.
Spurs closed out the win to the acclaim of a White Hart Lane crowd who are becoming increasingly accustomed to goal-laden nights in the Champions League.