It isn’t a Mai Tai at all, but some fine Hot Buttered Rum from Trader Vic’s. This commercial product compares favorably to the handcrafted Hot Buttered Rum kits you see for sale at craft cocktails bars during the holiday season.
Vic’s mix is jarred with sugar, butter, and spices mostly, and is $9 at BevMo where I picked it up. I like to use a little extra mix just to make it a bit more rich. Pairs well with heavier rums such as those from Jamaica or Guyana, but use your favorite. Might be a good use of a spiced rum if you have some.