Halve the avocado(s), remove the seed and scoop out the flesh, before then mashing it into a paste.
Combine the fruit and olive oil in a blender and pulse until texture is uniform.
Add the resulting puree to the avocado paste and mix in the onion, lime juice, salt, and chili to taste (in this case, about a teaspoon of particularly potent habanero chili powder from Baltimore delivers an eye-watering kick).
Serve and observe whether your guests notice the difference in composition – odds are they won’t.