The best pizza was and still is the simple Neapolitan, an invention now protected by its own trade association that insists on sea salt, high-grade wheat flour, the use of only three types of fresh tomatoes, hand-rolled dough and the strict use of a wood-fired oven, among other quality stipulations.
With just a few ingredients -- dough, tomatoes, olive oil, salt and basil (the marinara pizza does not even contain cheese) -- the Neapolitans created a best food that few make properly, but everyone enjoys thoroughly.