I tried this trick for the first time when I needed enough guacamole to last for a week and knew that half an avocado, no matter how gigantic, would not cut it. The resulting guac was still delicious (and I could hardly tell it wasn’t all avocado) and lasted the whole week without any browning!
Before (1/4 avocado + steamed asparagus):
After (post-immersion blending):
After after (mixed with salsa, the other 1/4 avocado because I like it chunky, lime juice, s&p, and red pepper flakes):
The resulting guac had a slight asparagus flavor (which is fine with me since I love asparagus) but definitely retained its guacamole identity