Patrick van Aanholt's opener for the visitors was quickly cancelled out by Christian Eriksen towards the end of the first half, before a returning Mousa Dembele fired us into the lead just shy of the hour mark.
Eriksen then bagged his second of the game before Danny Rose won a penalty off Sunderland debutant Jan Kirchhoff and Harry Kane completed the scoring from the spot.
Spurs (4-2-3-1): Lloris (c), Trippier, Alderweireld, Vertonghen, Rose, Dier, Dembele (Carroll 80), Lamela (Onomah 73), Alli, Eriksen, Kane (Son 87). Substitutes (not used): Vorm, Davies, Wimmer, Chadli.
Sunderland (4-4-2): Pickford, Jones, van Aanholt, O’Shea (c), Brown, Johnson, Lens (Watmore 76), Cattermole (Rodwell 53), M’Vila, Defoe, Graham (Kirchhoff 59). Substitutes (not used): Mannone, Coates, Fletcher, Borini.
Goals: Spurs – Eriksen 42, 67, Dembele 60, Kane 79 (pen); Sunderland – van Aanholt 41.
Yellow cards: Sunderland – Cattermole, Johnson.
Referee: Mike Dean.