curve Oreos to define which side of the cooky the cream filling stick to is a time abide by custom . For small fry , it ’s a great way to place a stake , or go down a variety of playground contravention with the aid of the delicious concoction .

And the probability was always chalked up to dumb - luck , or some blind happenstance decide by the fate of the universe . But according to Princeton University researcher , it has nothing to do with probability or the powerful whims of the cookie Gods . In fact , a study in 2014 concluded with a 100 % rate of accuracy which side of the cookie gets the cream , and it all boils down to how Oreos are manufactured .

The group of graduate pupil in aerospace and mechanical engineering used high - tech machinery – in increase to family and friends – to reason out that every cooky inside an individual box of Oreos splits in half the same exact room . While it took a grouping of physicist to make the discovery , it ’s pretty easy to test the finding yourself , asQuartz distills howto do just that :

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“ pose the Oreo box so that the text edition on the packaging is face the right-hand way , and take out the cooky in the upper left-hand hand corner . If the cream ends up on the left biscuit on one cooky , it ’ll end up on the leftover cookie for every cooky in that box . If it ’s on the right wing , frailty versa . ”

That sound easy enough , but where ’s the evidence belying this simplistic title ? “ It was easy to make the leap that it ’s a feature film of the fabrication process , ” alumna researcher Dan Quinn told Quartz . Oreos are made by a car that pump the cream filling onto a wafer . It ’s the side of the cookie which first get the cream that defend the blotto handle on the frosting , and keeps the icing when carve up in half .

This is certainly science ’s best attempt at excuse one of the great enigma of the snacking cosmos , so test it out yourself , and see what happens .

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Sam Blum is a News Staff Writer for Thrillist . He ’s also a soldierly arts and euphony dweeb who appreciates a ok sandwich and cute dogs . regain his clips in The Guardian , Rolling Stone , The A.V. Club and Vice . He ’s on Twitter@Blumnessmonster .