Tequila dominates this lightly citrusy fairly dry classic. The bitters play a key role in both balance and flavour.
It's worth noting that this drink...
I love this cocktail. Requires a good thick Grenadine like Portland Syrups (created with American bartender/youtuber Anders Erickson). Recently tried adding just a splash of Mezcal to the mix which cuts some of the sweetness. Muy bueno!