Spurs’ title hopes were dealt a huge blow as they became the latest team to feel the wrath of re-born Burnley.
The Clarets extended their unbeaten run to eight league matches following a breathless second half, where Ashley Barnes stroked home a dramatic later winner after returning Spurs striker Harry Kane had cancelled out Chris Wood’s opening goal.
Burnley’s in-form strikers now have 11 between them in the unbeaten run this calendar year, spearheading the Clarets' climb away from danger.
And pitted against a side coming off four league wins without star striker Kane, Burnley’s latest three points was arguably their best yet.
The match started in a raucous manner, with the Clarets willing to press Spurs when out of possession.
As Spurs struggled for rhythm in the opening minutes, Burnley kept shape while Wood and Barnes tried to squeeze the away side.
Young flyer Dwight McNeil also showed flashes with his directness, proving problematic for Tottenham.
However, the first meaningful moment of the game came from the boot of England skipper Kane, who was given space and time and weaved his way past three Burnley defenders before firing wide.
On 32 minutes, Ben Mee saved a certain goal to clear a dangerous Son cross, before Eriksen’s goal-bound strike was blocked by Bardsley.
However, Burnley had their moments too, notably when Barnes nearly lifted the roof off Turf Moor with a fizzing effort that landed on the roof of the net.
Spurs soon wound things up again from the re-start and it took a breathtaking save from Tom Heaton to claw away a searing drive from distance from Kane.
And that proved pivotal as Burnley opened the scoring in the 56th minute.
McNeil’s magnificent corner delivery arced towards the Kiwi, who rose above the pack to flick a delicate header in off the underside of the crossbar for his 10th goal of another profitable season.
However, there was little time for celebration as Spurs controversially equalised a mere nine minutes later.
Burnley were left fuming as the fourth official caught a clearance and instantly threw the ball to Danny Rose, who gained several yards with the throw that sent Kane storming toward goal before surgically putting the ball beyond Heaton.
The Clarets might have been forgiven for feeling sorry for themselves, as Spurs suddenly smelt blood.
However, it was the hosts who pushed on in search of a winner, as McNeil forced Lloris to save down low following a smart move down the right.
And the game’s defining moment came seven minutes from time after a mix of brilliance and richly deserved good fortune.
Dyche had introduced Robbie Brady and Johann Berg Gudmundsson four minutes earlier, and the Icelendic wide man, watched proudly from the stands by his country’s president, showed poise and trickery to dance his way past three Spurs defenders.
With an end product needed, the Icelander mishit his cross, but the bobbling ball fell perfectly into the path of Barnes who in typical fashion, popped up when needed most.
Burnley: Heaton, Taylor, Tarkowski, Mee, Bardsley, Cork, Hendrick (Gudmundsson 79), Westwood, McNeil (Brady 79), Wood, Barnes.
Substitutes: Hart, Lowton, Gibson, Crouch, Vydra.
Tottenham: Lloris, Rose, Alderweireld, Vertonghen, Foyth (Lamela 76), Aurier, Sissoko, Winks (Llorente 62), Eriksen, Son (Moura 88), Kane.
Substitutes: Gazzaniga, Wanyama, Walker-Peters, Davies.
Booked: Llorente, Foyth, Lamela