The 37-year-old has now scored nine Premier League goals in 17 appearances against Tottenham, who trudged off wondering how they had failed to demolish Leicester during their dominant first half display.
Tottenham finished fifth in boss Ange Postecoglou’s first season following a campaign in which the Australian’s commitment to all-out attack was eventually exposed at the cost of Champions League qualification.
Once again, Tottenham were hampered by poor finishing and unfocused defending. Dominic Solanke was especially culpable on the striker’s debut after moving from Bournemouth for a fee that could rise to £65 million ($84 million).
“Disappointing night for us. First half excellent and controlled the game but wasteful in front of goal. Once Leicester scored, the crowd lifted and we lost our composure,” Postecoglou said.
“It was an issue we had last year as well. We need to keep working hard and be a bit more ruthless in front of goal. At times we made poor decisions.
“The dominance is great but if you don’t score it is meaningless. We have to be stronger in our mindset in the front third. To be that wasteful is disappointing. We just weren’t clinical.”
Vardy didn’t miss a chance to take aim at the travelling Spurs fans, taunting them the title count of both teams as he was subbed off.
Spurs great Robbie Keane highlighted a disappointing response from Postecoglou’s side after halftime.
“I don’t know what happened at half time in that dressing room,” Keane said after the game.
“A really poor second-half performance from Tottenham. They’ll be kicking themselves at the opportunities they did have.
“If Tottenham scored a second goal they would’ve gone on to win this game.”
Leicester are back in the Premier League after winning the Championship to end their one-year absence.
Amid reports the Foxes could face a points deductions for breaking financial rules, new boss Cooper needs to hit the ground running if they are to avoid relegation and this gritty display was an encouraging start.
Tottenham went close to an early lead when Wilfred Nidi cleared Rodrigo Bentancur’s effort off the line before Mads Hermansen saved Brennan Johnson’s fierce effort from the rebound.
Solanke’s diving header was straight at Hermansen before Cristian Romero nodded Porro’s cross just wide.
By the time Solanke tested Hermansen with another header, it seemed only a matter of time before Tottenham’s pressure was rewarded.
A slip from James Maddison on the rain-soaked surface drew delighted cheers from the Leicester fans who jeered their former player.
But Maddison exacted ruthless revenge in the 29th minute, floating a pin-point cross into the Leicester area, where Porro timed his run perfectly to flick his header into the far corner from 12 yards.
Porro’s bold advance from right-back showcased Postecoglou’s belief that his team can overwhelm opponents with sheer weight of numbers in the final third.
Maddison almost provided another assist moments later with a superb cross that Johnson fired narrowly wide.
Solanke should have done better than shoot straight at Hermansen early in the second half, while the over-worked keeper also saved Bentancur’s close-range strike.
Tottenham’s wastefulness came back to haunt them in the 57th minute as Leicester struck from their first effort on target.
Unhinged far too easily, Tottenham’s defenders stood statuesque as Vardy was left unmarked in the six-yard box to head in Abdul Fatawu’s cross.
