James Forrest completed his hat-trick and notched his 100th goal for Celtic. Minutes after Hibs pulled one back, Celtic restored their three goal lead as Aaron Mooy regained the ball before sliding Forrest in.
The Scottish winger, who has had to bide his time, made no mistake and completed his hat-trick with a driven strike which beat Marshall, thanks to a deflection.
Celtic have been dominant and will hope to register a few more goals as the game enters its final thirty minutes.