I can never resist Persian cuisine, and I definitely can’t resist saffron pistachio bastani. Years ago, we knew a wonderful Persian restaurant in Maida Vale, but neither of us could remember its name. So it was that after our appointment in Knightsbridge on Tuesday, we decided to make do with a Turkish restaurant in Bayswater. But as happenstance would have it, on our arrival — after a leisurely scenic walk through Hyde Park — we discovered there was a Persian restaurant right next door. As I say, I can’t resist, so we went there instead. No regrets.