Well I've found it this week. In Rome (Italy is after all the home of espresso and cappuccino). Made by the Filipino-Italian waiter in the dining room at the Hotel Santa Maria.
And it was no fluke. I had several every day just to be sure! Each and every one was perfect. The espresso was strong and full of flavour without being bitter; the proportions were perfect with 1/3 espresso, 1/3 milk and 1/3 foam; it was served in a cup which was just the right size (American coffee chains - you know who I'm referring to - in catering to their customer's obsession with things being bigger have way too little espresso in proportion to the milk); and the foam had that perfect silky texture.
It's a lovely hotel as well.