Avocado puree

My recipe book; Mum's handwriting.

Avocado puree (Mum's "nicer than guac.")

1 soft avocado, 1/2 finely chopped onion, salt, pepper, tabasco to taste and a glug of olive oil.

Mash avocado, mix in other ingreedience.

Some commentary. Simple. The final word of the recipe demands further explanation, which will be for another day.