Convergent etymology: paella / pilau

The other day in the London City out of scientific interest I ate from a hipster stall a portion of /pʌɪˈɛlə/. It wasn’t paella – it looked and tasted like sewage sludge, black, oily, foul – but I couldn’t work out (and didn’t dare ask) what method had led to this madness. A couple of…