SEOUL, Feb. 8 -- South Korea's latest dessert obsession has officially finished baking - and cooled - in record time.

According to The Korea Herald, search interest in the wildly popular Dubai chewy cookie plunged to half its peak in just 17 days, proving once again that nothing burns hotter - or disappears faster - than a K-dessert trend.

Born in April from dessert brand Mont Cookie, the treat only truly took flight nationwide in December, when social feeds were suddenly flooded with glossy, gooey cookie shots.

But as a Naver Data Lab analysis now shows, the hype had the lifespan of a mayfly dusted in powdered sugar.

Experts told The Korea Herald that these sugar rushes rise and fall at breakneck speed because desserts are now "bough...