Despite missing several of their regulars, Thomas Tuchel’s team came through what was at times a testing encounter at Stadium TFC with an eighth straight league victory.
Eric Maxim Choupo-Moting had sent an early effort over from close range before Marquinhos saw a goal ruled out by the VAR for offside.
Mbappe, however, produced the game’s moment of quality in the 74th minute when he took down a cross from the right to drill a low shot back into the bottom corner.
Toulouse boss Alain Casanova hailed the “extra-terrestrial” talents of Mbappe after the France forward’s brilliant second-half goal.
“It is an extra-terrestrial who makes them win the match, but we managed to cause them problems. (PSG goalkeeper Alphonse) Areola made two miraculous stops,” Casanova told reporters.
“We have to get over the disappointment of missing such a big opportunity.”
It would appear only a matter of time before PSG secure another title, which could come as soon as next weekend with another win over Strasbourg at the Parc des Princes should second-placed Lille fail to beat Reims.
Tuchel, though, wants to take things one step at a time, with little time to recover ahead of the midweek French Cup tie against Nantes.
“After the international break, matches are never easy. There are many matches, trips… the players come back tired. We felt it this week in training,” Tuchel said at a press conference.
“This match is a big obstacle that we overcame with mentality and personality. We played and never let go. It’s good. We stayed calm and confident, which was necessary to win this game.”
While fans and pundits alike like to discuss how the Paris Saint-Germain player could shape into the best player in the world in five-10 years, the ex-Manchester United boss wants to focus on how Mbappe is already up there among the best.
Mourinho believes that, given the player’s age, he would be the most expensive player in a hypothetical transfer.
“For a player like Mbappe, when you speak about the future, you don’t need to say what he’s going to be like in five years’ time, in 10 years’ time,” Mourinho told beIN Sports.
“Just focus on now. He’s absolutely incredible.
“I think going by his age and [and considering] the age of Cristiano, of Messi, [both] over 30, Neymar is 27… when you go to the market level and age is also a factor, I think he’s the most valuable player in the world.
“In a hypothetical transfer, he’s the most expensive player in football now. In terms of his qualities, [he is] unbelievable. One word is enough. It means everything.”
Paris Saint-Germain head coach Thomas Tuchel praised his players’ attitude as his side continued to bounce back from their Champions League exit.
On Sunday night, PSG recorded their fourth win in a row against their rivals Marseille and extended their lead at the top of Ligue 1 to 20 points.
It comes after Manchester United secured an extraordinary victory at the Parc des Princes nearly two weeks ago to progress into the Champions League quarter-finals.
Quoted in a post-match interview on PSG’s official website, Tuchel said he only had compliments for his team’s 3-1 win in Le Classique and suggested they had put the defeat to United behind them.
“The players played with a great mentality and a lot of quality. We showed how much we wanted to win,” he said.
“After Manchester United, it has been tough, but we have to accept what happened. The team reacted fantastically tonight.”
Kylian Mbappe scored his 26th league goal of the season to give PSG a half-time lead but Valere Germain equalised moments into the second half.
Angel Di Maria struck either side of a red card for Marseille goalkeeper Steve Mandanda, sealing the win and moving PSG ever nearer to another Ligue 1 title.
The hosts were forced to change things just after the half-hour mark with Thomas Meunier and Dani Alves coming off and Colin Dagba and Thilo Kehrer replacing the injured pair.
“I’m very happy because despite the absentees and the players injured today, we stayed confident and played well. It was exceptional,” Tuchel added.
Dagba, playing in his first Classique, told the website it had been a great match, saying: “I didn’t know I was going to come on so early, but it went well. My team-mates did everything to help me settle. It was a great Classique.”