
Goalkeeper Ben Foster, given a Wembley opportunity as manager Sir Alex Ferguson rested Edwin van der Sar, was United's hero with a stunning save from Aaron Lennon in normal time.
Foster distinguished himself with a superb save from Jamie O'Hara's spot-kick, and when substitute David Bentley missed, Spurs' fate was sealed as Anderson confirmed United's victory.
Cristiano Ronaldo struck an upright seconds from the end of normal time as both defences dominated a final in which clear-cut opportunities were at a premium.
Ryan Giggs, Carlos Tevez, Ronaldo and Anderson were successful for United from the spot in the shoot-out, but only Vedran Corluka scored for Spurs.