People would have known about them at least as avocado was a popular interior decorating color in the late 60s and 70s. In general the food of that era was swe

People would have known about them at least as avocado was a popular interior decorating color in the late 60s and 70s. In general the food of that era was sweet and bland, so often recipes like this were just to give the reader a sense of excitement, rather than something likely to actually be made.