The youngster captained his nation to a comfortable 5-2 win.
The former Barcelona player captained the Spanish side to a comfortable 5-2 win and was pivotal to proceedings.
He set up his former La Masia team-mate Munir El Hadadi for the opening goal after just two minutes before setting up Marco Asensio of Espanyol for his first goal at this level.
It was a great performance from the Everton man who has been showing flashes of his brilliance this season.
He stole the show in a recent Capital One Cup win over Reading at the Madejski Stadium. He struggled in the recent Merseyside derby, which has some over-criticising the lad, but it was still from his cross that Romelu Lukaku scored in the game.
There is no doubt that this summer Everton snapped up a real gem in their former loanee and on Twitter there was certainly a buzz after his most recent exploits.
Here is some of the best reaction...
Amazing how Deulofeu's crossing has improved so much over the past year... He could give Beckham a run for his money!— La Masia (@Youngcules) October 7, 2015
Good to see Deulofeu playing well for Spain u21 team Which he laid on two goals in Spain U21s' 5-2 win World Cup... http://t.co/PiSlckcS1X— Everton Page 1878 (@Efccol) October 8, 2015
When Munir and Deulofeu perform well together pic.twitter.com/DqS7OiZiu9— dinho (@BasedDinho) October 7, 2015
I think it's absurd calling Deulofeu selfish considering the amount of chances he creates— Yasser (@MohamedYasser13) October 7, 2015
@English_AS he's magic...you know...Gerard Deulofeu— Peter Fitzpatrick (@Fitzpap86) October 7, 2015
Another 2 assists for Deulofeu tonight for Spain's U21's.— Ghedin1878 (@Ghedin1878) October 7, 2015
Deulofeu another assists for him and yet some fans call him rubbish and worship Naismith he had a bad game in the Derby but still assisted— Sophie Gallagher (@SophieG45028765) October 7, 2015