From the Super Mario Wiki
Making this recipe solely requires a Melon from Lavalava Island, though mixing a Melon with a number of other items (such as a Koopa Leaf or a Honey Syrup) will produce the same result. Additionally, a Special Shake can also be made by mixing a Jammin' Jelly with various other items (including a Melon); however, this is unadvised as a Jammin' Jelly recovers more than twice the Flower Points than a Special Shake does, resulting in a net loss. Whichever option Mario chooses, bringing the item(s) to Tayce T. will make the Toad chef cook a Special Shake. Special Shakes are recovery items and as such they are usable both inside and outside of battles. Using them replenishes twenty FP.
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