A pineapple's core is very hard, and not as sweet as the rest of the pineapple, so we usually don't want to eat it. But it is still very aromatic and nutritious. If you have a very powerful blender like a Vitamix, it can still be used to make a beautiful contribution to your cooking.
Usually I buy the fresh pineapple from the street market. I cut the core from the rest of the pineapple, then chop everything into smaller chunks, about 1 or 2 cm long, and keep them in the freezer.
Here are a few ways you can use the core of a pineapple:
1. Blend the core in a good blender like a Vita-mix, to make juice, or smoothies, together with other fruit or vegetables.