Step 1

In a large bowl, mix onion, lime, and salt. Set aside while you chop and prepare everything else.

Step 2

Add avocado to bowl and mash with a fork, pastry cutter, or potato masher until only small chunks remain (or completely smooth, depending on your preference).

Step 3

Add jalapeño and cilantro, stir to combine.

Step 4

Serve immediately.