What’s really good is homemade cocoa, where you’re supposed to mix the cocoa powder and the sugar and a little bit of milk at the bottom of the cup into a paste, and then add the rest of the milk, because cocoa and milk don’t mix easily, but instead you fill the cup halfway with milk, and then add the cocoa and the sugar and mix it up fast so you get a foam of sugary unmixed cocoa floating on top of the drink.