Keep Your Guacamole Green
Guacamole is the most popular use for avocados, but it can discolor. Forget the old cook’s tale to stick the avocado pit in the guacamole as a deterrent to browning. Instead, press plastic wrap directly onto the surface of the guacamole and refrigerate the bowl. Or stir a few tablespoons of sour cream into the guacamole, which increases its acidity and thus slows the browning and then cover and refrigerate.