Holders Bayern Munich will face Borussia Dortmund in next month's German Cup final after cruising to a 5-1 win over second-division Kaiserslautern in Wednesday's semi-final.

Bayern reached their third consecutive domestic cup final by bouncing back from back-to-back Bundesliga defeats to see off Kaiserslautern, who had knocked out top-tier sides Bayer Leverkusen and Hertha Berlin en route to the semis.

Goals by Bastian Schweinsteiger, Toni Kroos, Thomas Mueller, Mario Mandzukic and Mario Goetze saw Bayern go through to the May 17 final at Berlin's Olympic Stadium.

The Bavarian giants, who wrapped up this season's Bundesliga title with a record seven games to spare, will face Dortmund, who shocked Bayern 3-0 in Munich in the league last Saturday, in a repeat of last season's Champions League final.

Pep Guardiola's Bayern had few problems against the 'Red Devils' of Kaiserslautern as Germany midfielder Schweinsteiger hit the crossbar and then headed home an Arjen Robben corner with 24 minutes gone.

Kroos doubled the hosts' lead at the Allianz Arena on 32 minutes to make it 2-0 at the break.

Robben then won a penalty five minutes into the second half when he was fouled by Kaiserslautern defender Chris Loewe and Mueller fired home the spot-kick.

Kaiserslautern striker Simon Zoller headed home a consolation goal on the hour mark, with his side surviving on less than 30 percent possession, before Mandzukic netted the hosts' fourth to end any hopes of a fight-back.

The Croatia international, who scored a hat-trick in the 5-0 quarter-final drubbing of Hamburg, converted a Goetze cross on 78 minutes.

Goetze then tapped home Bayern's fifth just before the final whistle as the attacking midfielder beat Kaiserslautern's off-side trap.

On Tuesday, Poland striker Robert Lewandowski hit his 100th goal for Dortmund as they beat VfL Wolfsburg 2-0 in the other semi-final.

The 25-year-old has vowed to leave the club having delivered silverware this season and faces his future employers Bayern in the Berlin final.

Lewandowski, who will join the Bavarian giants at the end of the season, scored a hat-trick in the 2012 Cup final when Dortmund routed Bayern 5-2.

Dortmund took an early lead against the Wolves when midfielder Henrikh Mkhitaryan cut in from the right and unleashed a superb shot just inside the near post on 12 minutes.

With half-time approaching, Belgium Under-21 international Junior Malanda hit the post for Wolfsburg and compatriot Kevin de Bruyne fired the rebound wide for the visitors.

It was a costly miss as Dortmund went 2-0 up 72 seconds later when Germany star Marco Reus found Lewandowski unmarked and he slammed his shot into the top left-hand corner to reach his milestone.