Grand Dizzy is ill

"Poor old Grand Dizzy! He's very ill and has run out of medicine. He asks you to make him some more."
Nudge 1Where to look
Read the old recipe lying in his hut (pick it up and look at it on the status screen).
Nudge 2A stronger push
It takes three things, each thrown into the big cauldron by the juggling Yolkfolk: something to put the medicine in, a plant with a star in it, and something red and white from Silver Stream.
Nudge 3Almost there
The bottle is on the fourth floor; the plant grows on the third floor, high up; the mushroom grows by Silver Stream.
What you needOther problems to solve first
Solve these first (each opens its own page, no answers on the way):
Show the solutionThe whole answer, with a video
Bring the empty medicine bottle, the magical star plant and the red and white mushroom. Stand by the cauldron and drop them one by one: each is tossed into the pot. After the third, a full bottle of medicine flies back to Dizzy. Drop it beside Grand Dizzy: "Grand Dizzy's eyes light up as he drinks the medicine. He offers you the treasured golden egg he found in the diamond mine." Stand to the right of the egg and press B to take it (from the left, B talks to Grand Dizzy instead).
Why it works
The juggler's throws are counted: the third one sends the medicine back instead of keeping it.