"In the changing room at half-time, everyone said to each other 'let's give everything', " said Sneijder.
Seedorf's call-up came after Sneijder was injured in Ajax's 1-0 defeat by PSV Eindhoven on Sunday.
BBC: SPORT | Football | Internationals | Van Persie out of Holland squad
Sneijder added a goal five minutes later with Huntelaar rounding off the scoring with four minutes left.
Giovanni van Bronckhorst, Wesley Sneijder and Arjen Robben each scored to earn a clash with Spain or Germany.
Inter Milan midfielder Sneijder netted the winner when he headed Dirk Kuyt's near-post flick-on past a stranded Cesar.
Only in the closing minutes did Inter threaten with Maicon, striking substitute Samuel Eto'o and Wesley Sneijder going close.
CNN: Inter held by Genoa in San Siro but stay four points clear
Fellow Dutch internationals Ruud van Nistelrooy, Arjen Robben and Wesley Sneijder have all been linked with moves away from the Bernabeu.
In Serie A, Sulley Muntari and Wesley Sneijder were on target as champions Inter Milan beat Catania 2-1 to stay top.
CNN: Real Madrid held goalless in Spain; Inter stay top in Serie A
Brazilian goalkeeper Julio Cesar hoisted a long kick forward and Milito held off Martin Demichelis to work it back to Wesley Sneijder.
CNN: Milito double as Inter Milan crowned champions of Europe
In other friendly action on Saturday, the Netherlands beat Japan 3-0 in Enschede with Robin van Persie, Wesley Sneijder and Klaas-Jan Huntelaar on target.
Robinho had given Brazil the lead only for the Dutch to draw level through a Felipe Melo own goal before Wesley Sneijder's 68th-minute headed winner.
But Sneijder and Robben again made the difference for the two-time runners-up, who were left hanging on at the end following Maxi Pereira's injury-time reply.
The Dutch came from behind to beat 10-man Brazil 2-1 as a Felipe Melo own goal cancelled out Robinho's opener, before Sneijder headed in the winner.
Wesley Sneijder restored the Dutch side's lead despite Robin van Persie appearing to be offside, and an Arjen Robben header made it 3-1 three minutes later.
Holland midfielder Sneijder tested goalkeeper Storari after only six minutes to signal his team's intent while Eto'o had a key role in the following two goals.
But Galatasaray, boasting the likes of Didier Drogba and Wesley Sneijder, was soon level thanks to a stunning 25-yard drive from former Schalke player Hamit Altintop.
In one of the few moments of note early on, Wesley Sneijder stung the palms of Neuer with a drive that was directed straight at the goalkeeper.
Sneijder floated a superb, raking pass to release the Bayern Munich man, who controlled, ran on, cut inside and then finished with aplomb into the bottom corner.
The young centre-back, making his first Champions League start, found himself unmarked from Wesley Sneijder's free-kick but he turned his effort wide from a few yards out.
The Argentine forward reacted quickly and quickly turned to receive a perfect return pass from Sneijder and clip the ball over Hans Jorg Butt in the Bayern goal.
CNN: Milito double as Inter Milan crowned champions of Europe
After a period of concerted pressure as the ball ricocheted around the box in the 52nd minute, the Arsenal striker managed to nudge it into the path of Sneijder.
The momentum of the match swung in the Netherlands' favour when Melo headed beyond goalkeeper Julio Cesar and into his own net attempting to clear a 53rd-minute Sneijder cross.
Eto'o teed up Sneijder in acres of space on the left-hand side of the box and with only the keeper to beat but he dragged his near-post shot wide.
Elsewhere, Galatasaray fielded both major January signings -- Wesley Sneijder and Didier Drogba -- in their home clash with Germans Schalke but were held to a disappointing 1-1 draw.
Forlan polled 23.4 percent of votes cast by journalists covering the World Cup, to finish ahead of Dutch playmaker Wesley Sneijder (21.8 percent) and Spain striker David Villa (16.9%).
Sneijder exploited gaps on the Chelsea defense and from his pass the best chance fell to Argentine Diego Milito but he scuffed his shot wide of Turnbull and the goal.
CNN: Eto'o goal sinks Chelsea as Mourinho returns in triumph
Growing in confidence, Inter should have been two up before the break as Milito turned provider to set up Sneijder, who shot straight at Butt with the goal at his mercy.
CNN: Milito double as Inter Milan crowned champions of Europe
But there were also a few moments of real quality, none more so than a sumptuous through ball from the largely anonymous Wesley Sneijder that played Robben clean through on goal.
The Dutch, who have already reached the World Cup finals, play Scotland in a World Cup qualifier on Wednesday and may be without Sneijder who picked up an injury in the win.
Both have spent massively, PSG approaching half a billion dollars in two years, Galatasaray substantially less, but still enough to attract two highly paid veteran reinforcements in January: Wesley Sneijder and Didier Drogba.
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