1. Muddle the 8 cherries in a cocktail shaker even before you add anything else. (Yes, this is a bit odd, but it guarantees their incorporation into the drink.) Really pop each one and mash them about. Add the tequila, orange juice, Luxardo Maraschino, and muddle again to incorporate the cherry flavors with the rest of the drink. Add ice and shake the cocktail until chilled.
2. Pour the drinks into 2 highball glasses filled with crushed ice (you might have an ice crusher in your freezer; some of us do it manually—it’s all OK). Add the 2 kinds of bitters to each drink. As for bitters and the difficult denomination of dashes—indeed, it’s hard to be sure if each little splash is the “official” weight of a dash. At this amount of liquid, don’t fret it, but estimate and then feel free to do what tastes best to you. Maybe you want a really chocolaty drink, then go for it. You add the bitters to each drink last as so much of the pleasure of bitters comes through your nose. Just wait until that chocolate hits you.
3. Garnish each drink with one of the tequila-soaked cherries.

Tequila-Soaked Cherries

1. Up to 2 days before you want to make these drinks, put as many cherries as you think you’ll make drinks (plus a bonus few to, uh, test) into a sealable container, and then fill with tequila to just cover. Keep in the refrigerator until use. Feel free to use the soaking tequila—even in this cocktail—after the cherries have been liberated.