This one is simple to make and seems to please many.  Behold, the Mambo Italiano!

Mambo Italiano
2 oz amber rum (I like Angostura 1919, or something on the sweeter side)
1 oz Amaro Montenegro
2 dashes peach bitters

Stir it, strain it, give it an orange peel or twist, and put on some Dean Martin.  I used to call it the Rumanegro for lack of a better name, but that didn’t take.

I made this up after work one day when I just couldn’t be bothered to get more complicated.  Simple is often better.  Now I’m splitting one with my sweetie as an apertif after a lovely dinner with lovely friends.