You need 1/2 a red onion, a lime, an avocado, and a tomato.

Finding a ripe enough avocado can be hard, but I found one, and thought, 'Guacamole time!'

Scoop the avocado, chop the tomato and onion. Squeeze the lime juice into the bowl, and mix. If you have some red chilli powder, sprinkle some in, too.

I had some bread toasted and had a dollop of guacamole on each piece. Made enough for at least three sandwich slices, that's 12 little pieces. Was very filling and satisfying.