When it comes to cooking, you can't beat the Chinese.

Literal

Cooking [when-it-comes-to-となると] Chinese-people [to-には] can't-match [agreement-ね].

~となると is a more natural, conversational version of ~ということになれば. Both introduce a topic for comparison, but となると is shorter and punchier. The subject is omitted — an implied 'we' or 'one.' ね seeks agreement from the listener.