Have you mastered the one-handed egg crack yet? Whether you've seen the chefs do it on TV or your friend do it while making breakfast, it's the sure sign of someone who knows his or her way around ...

You've probably witnessed a chef impressively crack an egg with one hand and then quickly toss the shells into the compost bin. It speeds up the process, and it has the added bonus of looking cool.

We all wish we were as cool as those Instagram chefs who can flawlessly crack an egg with one hand, not dropping a single shell in the process. But if you haven't learned the trick yet — and ...