Carrying the colours of Gigginstown House Stud, whose most famous son is War Of Attrition, this relentless galloper proved far too good for his rivals.
One Cool Cookie made all the running and, except for one or two minor errors along the way, jumped superbly.
Zarghari tried his case early in the straight, but David Casey had saved plenty on the winner, who forged six lengths clear in the closing stages.
Commented trainer, Charlie Swan: “He's a real chaser in the making, but is only four and I didn't want to go that route for the moment.
“He won't run too much this season and wants better ground. I'd love him to get a lead in his races, but he stays so well, you don't want to be messing about.”
One Cool Cookie is a former pointer and another, Sean Aherne's Sheebadiva, took the second division of the same contest.
David Casey was also in the plate and again adopted front-running tactics.
The Norwich mare made all, finding plenty for Casey pressure to hold the persistent challenge of King Rama.
Said Aherne: “It mightn't have been the strongest of races, but she's a hardy devil. The trip was on the short side, I'd say she probably needs three miles.”
Curragh handler, Paddy Prendergast, enjoyed his first ever succcess over jumps when Miss Caruso made an impressive debut in the Smoked Salmon and Prawns Three-Year-Old Maiden Hurdle.
A smart handicapper on the level, she dispelled any lingering doubts about her staying two miles with an excellent performance.
Garret Cotter produced the daughter of Efisio, owned by Bill Durkan, with a smooth challenge going to the second last and she soon stretched away.
Said Prendergast: “I don't get any jumpers to train! Her main objective is the big juvenile hurdle at Leopardstown at Christmas, which the Durkan family sponsor.”
The layers, in need of a result, got it when Eric McNamara's newcomer, Buachaill Eile, streaked away with the first division of the Coffee and Cheque Please Maiden Hurdle.
Returned at 25-1, he paid almost 88-1 for a win on the Tote and, quite amazingly, in excess of 235-1 for a place.
Tommy Treacy eased the winner into the lead off the home turn and Buachaill Eile could afford to get in close to the last and still largely remain on the bridle.
He is owned by the five-member CCK Syndicate, from Galway and Limerick. McNamara missed the race, still making his way home from Paris, where his Strangely Brown performed below expectations on Sunday.
The second division of this contest provided the Bookmakers with another reasonable outcome when Gleninagh turned over heavily-backed market leader, The Deadly.
The latter was driven into the lead by Shay Barry coming away from the third last, but was always struggling to shake off Gleninagh, who found plenty on the run in. Fences now beckon for the daughter of Presenting.
Jamesy Boy, trained by Alan Daly and who finished tailed off, was suspended for 60 days for being “uncompetitive.”'
Eoin Doyle, busy at home, missed seeing his The Fonze complete a quick hat-trick of wins in the Creme Brulee Handicap Hurdle.
The imposing four-year-old scored twice at Fairyhouse last week and went up 20lbs. Under capable claimer, Niki O'Shea, he made light of that.
O'Shea was in no hurry, but produced The Fonze with impeccable timing to hit the front just before the final flight and the length and half verdict over Toulon Flyer was no indication of his superiority.