Today, September 16th, is National Guacamole Day.
Guacamole originated from the Aztecs in what is present-day Mexico.
This is an avocado based dish that at its most basic consists of ripe avocado mashed with sea salt. Most recipes nowadays include additional ingredients such as garlic, onion and peppers.
Guacamole is commonly served with many Mexican and Tex-Mex dishes, with one of the most popular way being as a dip used with tortilla chips.
With it being an avocado based dish, it pays to check the ingredients of any commercial guacamole. A lot of commercial "guacamole" is guacamole-style and contains very little avocado. Containing something like 5% avocado is fairly pitiful for guacamole.
Image: By Nikodem Nijaki (Own work) [CC BY-SA 3.0 (creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons