The Magpies piled on the pressure from the outset and eventually found the breakthrough 10 minutes before half time when Sunderland defender Dan Ballard sliced Joelinton’s cross into the back of his own net.
It took less than a minute after the restart for Newcastle to take full control of the first Wear-Tyne derby since 2016 when Miguel Almiron robbed the ball from Pierre Ekwah before squaring for Alexander Isak to convert into an open net.
Isak grabbed his second from the penalty spot in the final minute after Anthony Gordon had been brought down in the box by Ballard.
Championship side Sunderland registered just one shot and had only 28% possession as they struggled against their Premier League visitors in the opening 45 minutes, but they did improve in the second period and tested goalkeeper Martin Dubravka on several occasions.
Ekwah and Alex Pritchard were both denied by impressive saves from the Slovakia international to ensure Newcastle recorded their first win at the Stadium of Light since 2011.
The victory ends a run of four defeats across all competitions for the Magpies.
Source BBC Sports