Core A Head Of Lettuce In 5 Seconds All the years I’ve been making salads, I’ve been using a knife to get the core out. Click on the image above to play the video. PrevNext Facebook Related Posts You Can’t Watch These Weddings Without Laughing. A Pod Of Killer Whales Chase A Speeding Boat..Watch This Amazing Video! After Watching This, I Hope You Will Never Do This Again.