Bayerni scored in the first minute of Leipzig immediately in the second.
But then the Bavarian giant scored four more goals for a deep victory.
Friday's match between Bayern and Leipzig ended 5:1. It met the 15th round of the Bundesliga.
In the first minute, Jamal Musiala scored for Bayern's 1:0 lead. In the second minute, Benjamin Sheshko equalized at 1:1.
But there was no stopping Bayern after that. Konrad Laimer scored for 2:1 in the 25th minute, while Joshua Kimmich scored for 3:1 in the 36th minute.
In the second half, Leroy Sane scored in the 75th minute and Alphonso Davies in the 78th minute.
Bayern is the leader of the Bundesliga with 36 points. Leipzig has 27 points in fourth place.