Mbappe opened the scoring in the 37th minute before Rodrygo doubled Madrid's lead early in the second half. Vinicius sealed a comfortable win for the Spanish and European champions with a late penalty.
Mbappe swept in from close range to break the deadlock after brilliant play from Vinicius Junior, who won the FIFA Best Men's Player of the Year award a day earlier after missing out on the Ballon d'Or. Rodrygo's fine curling strike from the edge of the area put Madrid in total control, but the goal wasn't without controversy.
It was allowed to stand after the referee consulted the pitchside monitor even though Jude Bellingham was in an offside position and appeared to be interfering with the goalkeeper's line of vision.
Vinicius added a third from the penalty spot six minutes from time following another VAR review after Lucas Vazquez was chopped down in the Pachuca box.