It's not difficult to set off an argument between the US and UK sides of the internet, especially when, like me, you’re a Brit. How much should you tip in a restaurant? Is a dryer really a necessary household appliance? Should you let a domesticated cat go outside? The topics are varied and the outrage is forever overblown, but never more so than when the two sides are talking about food. American retorts against the phenomenon that is UK food are now an established part of the online vernacula…