I made it tonight! absolutely delicious, and it looks far more difficult than it actually was. (Though the recipe required some readings and re-readings-- would definitely be easier the second time around. And it makes *way* more coconut chutney than necessary-- I'll find another use--- I think it would be great with roasted eggplant or green beans.)
Did not make the mango chutney. I'm sure it would be a nice addition. The recipe wasn't specific, so I sprinkled the nigela seeds mostly on the center but a bit around the rest. And despite the instruction to "persevere" on rolling it out, I could not make it as large as (my) dinner plates, so my "roll" was a bit limited. Despite all that, very tasty.