ANTOINE GRIEZMANN scored a sublime flick to put Barcelona in front against Ferencvarosi.
The French forward expertly turned home from close range in Hungary.
Jordi Alba and Ousmane Dembele made good progress down the Barca left with 14 minutes on the clock.
The Spanish left-back fizzed in a low cross for Griezmann.
The ex-Atletico Madrid man - getting central in the absence of the rested Lionel Messi - got ahead of his marker Lasha Dvali.
And he made a clean connection with his trailing left heel to divert it beyond goalkeeper Denes Dibusz.
It was his third goal in as many games for the Catalan giants - including a thunderbolt of a volley against Osasuna on Sunday.
He had not managed that feat for the club since joining in July 2019 for £108million.
Six minutes later Martin Braithwaite made it four goals in a week before Dembele got himself on the scoresheet to make it three within half an hour.