Use only perfectly ripe mangoes for this sauce. They should yield easily to light pressure and have a pleasant, sweet smell. Unfortunately, the ripe fruits are extremely difficult to peel. I have found the best way to overcome this is to slice off the two broader sides as close to the large flat seed as possible, then scoop out the flesh from these halves and discard the skin. Cut and scrape the remaining flesh away from the seed. A quicker method is to use