Given the use of tequila, I initially opted for agave syrup over sugar syrup but I found the caramel notes this added somewhat overwhelmed the mint. Instead...
This was very interesting cocktail. I do not think it is as sweet as it's rating, but was very flavourful. Did find the mint gets a little overwhelmed by the anejo tequila. Perhaps a dash of white creme de menthe would work and back off the sugar syrup to balance the sugar. Went perfectly with our Southern California July 4th dinner of Carne Asada and freshly made flour tortillas. Would do again.