Harry Kane marked his first appearance in Der Klassiker in stunning fashion with a hat-trick to take his Bundesliga goal total to 15 in 10 games for Bayern Munich as they thrashed Borussia Dortmund 4-0 away on Saturday. Dayot Upamecano headed a fast‑starting Bayern in front after four minutes before the England striker slotted in from close range five minutes later, both goals created by Leroy Sané. A stunned Dortmund side improved after the break but Kane, Bayern’s record signing, grabbed his second goal to seal the points in the 72nd minute, again from close range. Kane then put the icing on the cake by completing his third hat-trick of the season in stoppage time after racing clear and finishing coolly. He is the first player to score 15 goals in his first 10 Bundesliga appearances and tops this season’s scoring charts, one ahead of Stuttgart’s Serhou Guirassy. Manuel Neuer, Bayern’s captain and goalkeeper, said of Kane: “We are so happy that we have him in the team.” The England captain’s fellow attacker Thomas Müller feigned concern that Kane would run out of space for match balls after his third Bayern treble. “He’s soon going to need another hotel room,” he said. Victory left Bayern on 26 points, two points behind the leaders, Bayer Leverkusen, who had earlier beaten Hoffenheim 3-2 away, helped by a double from Alex Grimaldo. Dortmund’s first league defeat of the season ended a run of 25 home matches unbeaten and left them fourth on 21 points. After stumbling on the final day of last season to hand Bayern an 11th straight title, Dortmund were itching to make a statement against their rivals and the fabled Yellow Wall was in full voice before kick-off. Bayern were humiliated by the third-tier club Saarbrücken in the German Cup in midweek and, despite Kane’s goals, have not been firing on all cylinders, though they remain unbeaten in the league. But they produced their best display of the season to outclass Dortmund, seizing control from the first whistle. Upamecano escaped his marker to thump a close-range header into the net from Sané’s delivery. The former Manchester City player was unstoppable early on and linked brilliantly down the left before sliding a low cross for Kane to tap home. Kane also hit a post as Bayern dominated, although Donyell Malen wasted a great opportunity to pull back a goal in first-half stoppage time, curling his shot over the bar. Dortmund improved in the second half without offering much threat. Kane scored his second from a Kingsley Coman pass and there was only going to be one outcome when he was played through by Aleksandar Pavlovic’s pass in added time. Dortmund host Newcastle in the Champions League on Tuesday, with Bayern at home to Galatasaray a day later.