Board Thread:Off Topic and Fun/@comment-27141282-20160229220225/@comment-25628880-20161210170905

Okay, I have it.

Challenge 71:


 * cough* 356 + 4 dayyyyyyyyyyyzzzzzz (hint: the theme)
 * 1) First appearance was in a game without holidays.
 * 2) It is not a holiday ingredient.
 * 3) It is unlocked with a different customer in each game which it appears in.
 * 4) Square 7 and subtract an unlucky number to get the amount of customers that order this ingredient, based on what we know.