Spurs were in imperious mood at home and clobbered a poor Watford side with Dele Alli, Eric Dier and Heung-min Son giving the Lilywhites a 3-0 lead at the break.
After the interval, Son volleyed home to complete his brace although he had further chances to complete his hat trick and add to the total in a one-sided contest in London.
It was all Tottenham from the very first whistle and Vincent Janssen would have three good chances to score in the opening 20 minutes though he saw his first effort saved by Heurelho Gomes.
Soon after he chested the ball on to the crossbar from Kieran Trippier's cross from the right, before being on his heels once more again as the right-back fizzed a delicious delivery on the volley right across the six-yard box.
Yet, Dele Alli would make it 1-0 in the 33rd minute when he cut inside from the left on the edge of the area and fired an effort past a helpless Gomes into the far corner. It was a superb strike from the prolific attacking midfielder.
The one way traffic continued and six minutes later Eric Dier would make it 2-0 when Heung-min Son's shot from the left rebounded to him on the edge of the area, and he rifled home a technically astute strike in off the turf, which again left Gomes floundering.
Son was having a terrific game and he got his name on the score sheet in the 44th minute when he picked up the ball in the hole from Christian Eriksen and then rifled a controlled left-footed finish into the back of the net.
It was turning into an afternoon to forget for the visitors and their misery was compounded in the 54th minute when Son volley home to make it 4-0 at the far post from another superb Trippier delivery from the right.
The South Korea had a chance to grab his hat trick in the final 10 minutes when he was put through one-on-one into the box with the keeper by Harry Kane, but inexplicably shot just wide with very little pressure on him.
Not long after he saw his first time strike clip the bar and fly to safety after Trippier's clever dinked ball found his run into Watford's box with accuracy. Kane would also strike the bar with the last kick of the game.