Finally, a method that works! For years, I've been dousing my guacamole with extra lemon juice, In hopes it will retain its vibrant green hue. Of course, lime juice works, but only for a limited amount of time. Furthermore, the additional helping of lemon juice makes for a very tart batch.
If you hate that unsightly layer of brown gunk that forms on top of your guacamole as much as I do — read on! The folks at the kitchn have figured out how to eliminate that pesky oxidation problem, and it couldn't be simpler. Here's how to keep your guacamole green, right down to the last spoonful.
(Pictures via here)