How to cook a Major Health Potion?

The book only gives limited information.

For how many seconds do I have to mix the first 100 candies?

Solution 1:

You follow the directs exactly as written. Throw in 100 lollipops, press the Mix button, then throw in 100 candies while it's mixing. Press the stop button when the mix counter reaches 20. Press the bottle button.

Solution 2:

You can also use multiples of 100 to create multiple potions in the same way you create multiple minor health potions.

For example: Throw in 500 lolipops, start mixing, throw in 500 candies, stop at 20 seconds, put it into bottles, and you'll get 5 major health potions.