Son Heung-min saved the best until last as Tottenham recovered their rhythm and revived their bid to reach the Champions League.
Collecting a pass from Dejan Kulusevski, Son created a yard of space as he shifted the ball away from Youri Tielemans and onto his left foot and sent a delicious shot curling in an arc around the dive of Kasper Schmeichel and into the top corner of the net.
It was his second of the game, the third for Spurs and it ended any thought that Leicester, distracted and caught between two European ties, might take anything away from this visit to North London.