Red Chu Jelly

Red Chu Jelly is one type of spoil you can get in The Wind Waker. After you get the Spoils Bag, you can get some from defeating a Red ChuChu. If you manage to collect 15 you can trade them for a free Red Potion from Doc Bandam. You can also sell them to Beedle for one rupee each.

In Twilight Princess, when link collects red chu jelly in a bottle it acts similarly to a red potion.