British researchers say they have devised a guaranteed method of pulling crackers, to avoid disappoint at the dinner table this Christmas.
The researchers say the method for always winning the long end of the cracker, and therefore the prize inside, is in the angle that you grip it.
They have released a mathematical formula to follow to guarantee success.
The formula, O11xC/L+5xQ, is based on the angle, grip and quality of the cracker.
You must first multiply the circumference of the cracker in inches (C) by 11 before dividing that number by the length (L) of the barrel.
Take that total and add it to the figure you get when you multiply the quality (Q) by five.
The quality is either one, two or three, depending on whether the cracker is cheap, standard or premium.
The formula ought to produce a figure between 20 and 55 degrees, which is the optimum pulling angle (O).
The cracker should also be pulled one inch from the end of the tail, newspapers said.
A quality control team at British department store Debenhams pulled hundreds of crackers in the run-up to Christmas before discovering the winning formula.
What I want to know is what do I have to do to stop having to wear a silly hat?