Menu1 sin khit (เมนูสิ้นคิด), literally ‘a dish (created when one’s) at one’s wits’ end,’ is an expression that Thais use, often in a self-deprecating way, to refer to a dish that come out of desperation.
Clearly, this expression only applies to homemade dishes because no restaurant would dare to admit they're at their wits' end, even if it were true. And…