Start by scooping the ripe avocado into a blender or food processor. Add the cocoa powder, sweetener, milk, vanilla, and a pinch of salt. Blend everything together until it’s smooth and creamy, scraping down the sides as needed. Taste the pudding and adjust the sweetness or cocoa to suit your preference. Once it’s to your liking, you can either chill it for a little while before serving or enjoy it right away.