Thankyou everyone!!!! Yes, after Googling I agree: they are feijoa! And now I can't wait until next crop! I only tried a few... about half a dozen this season... because I wasn't even sure I should be eating them LOL But they were just too yummy to resist! $2.99 a kilo!!! LOL I AM lucky! So, once again my beloved BB girls come to the rescue and have solved a mystery! Thanks again to all!