As for a turing test, we’re talking about a professional chef here. Someone you can take an enormous variety of ingredients to in various forms of freshness or preservation, who can produce something that tastes really good. Theres often a large amount of creativity, improvisation as well as fine motor skills and expert timing involved in the process. It would be a monumental, hugely expensive task to create a machine that could even produce something edible given the same constraints. This just seems so far fetched to me.