If onions aren’t your thing (or you don’t have one), try the water bath method. It’s so simple, it feels like cheating. Just submerge your cut avocado half in a bowl of cold water—flesh side down—so the water covers the exposed green part.
Stick the whole bowl in the fridge. The water acts as a barrier, blocking the oxygen from reaching the surface. When you’re ready to eat, just pat it dry with a paper towel. It’s like the avocado took a nice, refreshing swim and came out perfectly intact.
Pro tip: Change the water every day or two if you’re planning to keep it longer than 24 hours. Otherwise, it starts to feel a little like a swamp, and nobody wants swamp-ocado.
How to Keep a Cut Avocado Fresh
