Both of Higuain’s goals came from Dani Alves assists, with the Argentine hitman rounding off a breathtaking team move to open the scoring just before the half-hour mark and converting the second from close range after the break. 

While the second leg in Turin next Tuesday will be no formality, Juventus have never lost a two-legged European tie to French opposition and so impressive were they at the Stade Louis II that it is hard to imagine Monaco recovering. 

Higuain, who now has 31 goals this season, received applause from all around the ground as he came off to be replaced by Juan Cuadrado late on after a clinical display that showed just why Juve paid 90 million euros ($98m) to sign him from Napoli last year. 

In contrast Monaco, having won their previous 13 matches at the Stade Louis II and been so thrilling going forward all campaign, could not find a way through the brilliant away defence. 

They did grow into the game after a slow start and teen sensation Kylian Mbappe was first to test Gianluigi Buffon with a header from Nabil Dirar’s ball that the veteran goalkeeper held easily.

In the 16th minute the same trio were involved again, Dirar surging down the right and delivering a teasing ball to the near post that Mbappe diverted towards goal, with Buffon saving superbly.

Buffon, playing his 149th European game at the age of 39, started his career before Mbappe was born. But he remains one of the world’s best and shortly after he was there to turn the ball behind after Radamel Falcao met another Dirar delivery with a terrific leap. 

Buffon then intervened to stop Monaco getting a goal back, producing a majestic save in the last minute to tip over Valere Germain’s header from a Joao Moutinho free-kick.

They will now need something very special next week if they are to make it to a first Champions League final since 2004.