The effect is thanks to the physical properties of the pasta - you can bend it a lot before it ultimately snaps. So when it does snap, there's a lot of stress within the spaghetti as it springs ...

And finally, addressing one more Nonna no-no, 62% of boomers think it’s acceptable to snap spaghetti in half — compared to 45% of Gen Z amateur chefs. “The length of the pasta plays a ...