The orange comes in too heavy here and gives a cloying sweetness (though I used Cointreau instead of Grand Marnier), but the vanilla is a nice touch. Solid cocktail.
Been 17 years since I last made this but just knocked one up to give it a try. A 10-year-old tawny port rather than ruby port is key to the balance. Agreed, tripe sec doesn’t suit the recipe – better with Grand Marnier or a 35%+ abv dry orange curacao. It’s best as a night-cap rather than 9:30am as I now sip.