The proportions in this recipe are not precise. In the California hippy tradition, I just go by what feels right, haha.
What you need:
What you do:
Cut the avocado and tomato into smallish chunks and chop the onion finely (you should have more avocado than tomato and onion, though anything goes really). Combine in a bowl with finely chopped cilantro. Add lime juice and salt&pepper to taste. And it's that simple!
You can mash the mixture if you prefer a smoother guac, but for my part I find that a good stirring usually gives my preferred consistency, especially if the avos are ripe enough.