To keep those pineapple pancakes tasting as fresh as a tropical breeze, let them cool completely, then stash them in a zip-top bag or an airtight container. Slide them into the refrigerator if you're planning a next-day nosh, or tuck them into the freezer for a future feast. They will be ready for a quick warm-up in the toaster or oven when you're ready to ride the wave of flavor again.