Spurs rediscover that winning feeling as tired-looking Newcastle are put to the sword
Tottenham (2) 4 Udogie 26, Richarlison 38, 60, Son pen 85
Newcastle United (0) 1 Joelinton 90+1
Spurs ended their troubling run of results to claim a first win in six games, with skipper Heung-min Son setting up first-half goals for Destiny Udogie and Richarlison, as Newcastle failed to respond.
Richarlison's second half goal on the hour settled the outcome and snuffed out any hopes the visitors had of mounting a comeback, with Son himself adding the icing by rolling home a late penalty.
A sequence of four losses in five games - the exception being the draw at Man City, of all things - reached its nadir for Spurs with the deflating midweek capitulation against West Ham and Ange Postecoglou needed to see a change of fortune.
There has been mitigation during this spell with injuries and suspensions galore, but it was important to shift the dial back in their favour. They also wanted to prove to themselves that they could hold onto leads, which too often has not been the case this season.
It took a little while for Spurs to get in behind the visitors, but eventually they did as their suffocating press eventually told.
Bruno Guimares had fired just over the bar and only a well-timed Ben Davies intervention prevented Alexander Isak from connecting properly with Anthony Gordon's low cross.But those early moments of danger faded as Spurs gained control.
On 26 minutes, Son danced around Kieran Tripper to the left bylune and his cross was met with a firm tap home by Destiny Udogie from just a couple of yards out - the Italian's first goal for the club.
Moments later, Brennan Johnson slid in a pass from the right that Pape Matar Sarr should have put away as Spurs looked to ram home their superiority.
Miguel Almiron almost punished that profligacy when he was fed by Gordon - the result of Johnson coughing up the ball with a stray backwards pass that Isak picked up.
The Paraguayan shot tamely into the arms of Guglielmo Vicario and that would be the last time they seriously threatened to derail the dominant hosts.
Son soon turned provider again for the second - once more after getting the better of a struggling Trippier to reach the byline and Richarlison had a simple task.
The floodgates seemed to have opened all of a sudden and after Johnson flashed a shot narrowly wide, Richarlison was inches away from getting his head to a ball that ballooned his way off a defender after Dejan Kulusevski had fired from an angle.
Newcastle did their best to up the energy levels after the break, but Spurs killed off the contest on the hour when Pedro Porro's launch from near half way found Richarlison and the Brazilian knocked in his second of the afternoon.
Johnson sent an angled drive against the inside of the far post and a Son volley flashed across the face of the goal as Spurs really began to enjoy themselves - sensing the opportunity to exact even more revenge for the 6-1 mauling suffered at St James' Park at the tail end of last season.
There was still time for a goal for each side and a Cristian Romero yellow for a challenge on Callum Wilson that was typically reckless and close to a red. At 3-0 up, that is nothing short of brainless. The Argentinian remains a sending off waiting to happen, despite suggestions he has been showing greater maturity this season.
But the final word for Spurs went to Son, who converted from the spot after being upended by Magpies keeper Martin Dubravka. The South Korean might even have added a fifth after another late chance fell his way as well.
Joelinton bagged a late consolation which did little to alter the mood of Eddie Howe's well-beaten side.
Spurs: (4-2-3-1) Vicario - Porro, Romero, Davies, Udogie - Bissouma (Gil 86), Sarr (Hojbjerg 73) - Johnson (Skipp 86), Kulusevski, Richarlison (Lo Celso 73) - Son (Donley 90)
Magpies: (4-3-3) Dubravka - Trippier (Krafth 86), Lascelles, Schar, Livramento (Hall 74) - Miley, Bruno Guimares, Joelinton - Almiron (Longstaff 64), Isak (Wilson 64), Gordon (Ritchie 73)