The 25-year-old's tie-winning goals at Camp Nou took him up to 48 in the Champions League overall, drawing him level with two AC Milan legends in Andriy Shevchenko and Zlatan Ibrahimovic.
However, both of those players needed at least 100 games to get up to that tally, whereas Mbappe has reached the 48-goal mark in just 71 Champions League outings with Monaco and PSG.
That takes Mbappe into 10th in the all-time top-scorers list in the competition, with Real Madrid royalty Alfredo Di Stefano next in his sights on 49 goals.
Here, Sports Mole looks at the latest standings in the Champions League top-scorers list, including every player to have scored 40 goals or more.
Who has scored the most goals in Champions League history?
1. Cristiano Ronaldo (Manchester United, Real Madrid, Juventus)
Goals: 140
Appearances: 183
Ratio: 0.77
2. Lionel Messi (Barcelona, Paris Saint-Germain)
Goals: 129
Appearances: 163
Ratio: 0.79
3. Robert Lewandowski (Borussia Dortmund, Bayern Munich, Barcelona)
Goals: 94
Appearances: 120
Ratio: 0.78
4. Karim Benzema (Lyon, Real Madrid)
Goals: 90
Appearances: 152
Ratio: 0.59
5. Raul (Real Madrid, Schalke 04)
Goals: 71
Appearances: 142
Ratio: 0.50
6. Ruud van Nistelrooy (PSV Eindhoven, Manchester United, Real Madrid)
Goals: 56
Appearances: 73
Ratio: 0.77
7. Thomas Muller (Bayern Munich)
Goals: 54
Appearances: 149
Ratio: 0.36
8. Thierry Henry (Monaco, Arsenal, Barcelona)
Goals: 50
Appearances: 112
Ratio: 0.45
9. Alfredo Di Stefano (Real Madrid)
Goals: 49
Appearances: 58
Ratio: 0.84
10. Kylian Mbappe (Monaco, Paris Saint-Germain)
Goals: 48
Appearances: 71
Ratio: 0.68
11. Andriy Shevchenko (Dynamo Kiev, AC Milan, Chelsea)
Goals: 48
Appearances: 100
Ratio: 0.48
12. Zlatan Ibrahimovic (Ajax, Juventus, Inter Milan, Barcelona, AC Milan, Paris Saint-Germain)
Goals: 48
Appearances: 124
Ratio: 0.39
13. Eusebio (Benfica)
Goals: 46
Appearances: 65
Ratio: 0.71
14. Filippo Inzaghi (Juventus, AC Milan)
Goals: 46
Appearances: 81
Ratio: 0.57
15. Mohamed Salah (Basel, Roma, Liverpool)
Goals: 44
Appearances: 79
Ratio: 0.56
16. Didier Drogba (Marseille, Chelsea, Galatasaray)
Goals: 44
Appearances: 92
Ratio: 0.48
17. Neymar (Barcelona, Paris Saint-Germain)
Goals: 43
Appearances: 81
Ratio: 0.53
18. Alessandro Del Piero (Juventus)
Goals: 42
Appearances: 89
Ratio: 0.47
19. Erling Haaland (Red Bull Salzburg, Borussia Dortmund, Manchester City)
Goals: 41
Appearances: 38
Ratio: 1.08
20. Sergio Aguero (Atletico Madrid, Manchester City)
Goals: 41
Appearances: 79
Ratio: 0.52