The Blues frustrated their illustrious opponents at the Camp Nou on Tuesday as they looked to sit back and absorb the pressure.
Chelsea got the result they came for as the game ended 0-0 following 90 minutes of very little scares, although Barca substitute Bojan Krkic threw away a chance to win the game when he headed wide in the final moments.
But Essien, who played most of the match out of position on the right wing as manager Guus Hiddink looked to keep things tight, is expecting the Blues to show more attacking intent in the return leg.
"We really frustrated them, we have not played our attacking cards yet. Hopefully we will be much better to test them at the Bridge," he exclusively told skysports.com.
"We are a confident team at home, we will create more and need to go for it a bit because to qualify we need to win and score more than them.
"We defended very well and they did not create enough to win the game. Didier (Drogba) was unlucky with his chances but I think he will redeem himself if there is another chance at the Bridge."
Make amendsMeanwhile Didier Drogba is confident that if a chance comes his way at Stamford Bridge, like the one in the first-half in Barcelona, he will take it.
The Chelsea striker capitalised on Barca defender Rafael Marquez's poor back pass to get a clear shot at goal with just goalkeeper Victor Valdes to beat.
The Ivory Coast international opted for power but the Spanish keeper saved well to his right. The ball came back to the 31-year-old but Valdes managed to smother his delicate attempt to dink the ball over him.
"Hopefully I can get another one next week. I will make sure it counts," Drogba said.
The former Marseille ace now has his sights set on the second leg and although he acknowledges that it was difficult at times in the Nou Camp on Tuesday, he is sure the Blues can finish the job at home.
"It was difficult tonight for me and my team-mates but we came here to give us a chance for the second leg and we have done that," he added.
"We can beat them, as they know. We know if we win we will go through and we are looking forward to that."