You can eat around the core of an apple if you’re having on for a snack, but when you are baking with apples, you will find that you almost always need to remove the core before you start to cook. There are many different ways to remove a core. For instance, you can chop up the apple and slice out the seeds and core with a knife, or you can use a melon baller to scoop it out. It is often quicker and easier to use a tool made for the job, like an actual apple corer.
These gadgets slide right down into the center of the apple and pull out the whole core in one fell swoop, but anyone who has used one know that some models work better than others. I had a slippery one that I put up with for years, even though my hand would slid right off the handle when it got apple juice on it. I replaced it with an OXO Good Grips Corer, which has a non-slip handle and small serrations along the cutting edge to grip the apple while cutting. This model also happens to be Cook’s Illustrated top choice (in a 2007 test) for a corer for its strong performance and very comfortable grip, and the CI stamp of approval is always something that I take into consideration when looking at new gadgets to add to my kitchen collection.