Unfortunately, you needu003ca href=u0022https://amzn.to/2ECyT9Su0022u003e a pineapple coreru003c/au003e in order to slice rings. You’ll still cut off the top and the bottom, but then you’ll use the corer to remove the outside skin and the inner core. At that point, you can place the pineapple on its side to cut slices.