Robert Lewandowski scored twice and Lamine Yamal added a third goal to ruin Kylian Mbappé’s first Clasico as Barcelona romped to a 4-0 win over Real Madrid on Saturday.

Lewandowski scored from a superb pass by Barcelona’s latest youth talent Marc Casadó in the 54th minute and headed in a second goal three minutes later to silence Santiago Bernabeu Stadium.

Those were goals 16th and 17th overall for the Poland striker this season, taking his league-best tally to 14. He also hit the post.

Yamal made it a rout in the 77th when the 17-year-old phenom rifled a shot from an angle over goalkeeper Andriy Lunin to become the youngest Clasico goal scorer. Raphinha got involved in the burgundy-and-blue party when he broke free with Madrid pressing forward and chipped Lunin in the 84th.

Mbappé had a frustrating first game against Barcelona in a white shirt.

The France star was repeatedly caught offside by Barcelona’s synchronized back four and failed to beat second-choice goalkeeper Iñaki Peña one-on-one with his team down two goals.

Hansi Flick, meanwhile, had a night to remember in the first Clasico for the German coach.

Barcelona opened a six-point lead at the top of LaLiga over second-placed Madrid after 11 rounds.

Information from The Associated Press contributed to this report.