@sartoric et al. I woke up this morning with mangoes on my mind and remembered that I had printed out the article where I found the mango relish recipe. I still can't find that printout, but I remembered also that my printer at home was dead at the time and so I had printed it in the office. This meant I copied the file to a thumb drive to take to the office. Only question was which one - I have dozens. Miraculously, I found the article on the first drive I tried.
Then, I was able to search for a distinctive phrase from the article and eureka, I found it!
Which is a long story to tell you where it came from and to give credit to Thomasina Miers, whose recipe it is.
She also gives some other interesting mango recipes in the same article.
