Bright, bubbly, and refreshing with a touch of smokiness.

INGREDIENTS: 

1 1/2 oz tequila

1/2 oz mezcal

3/4 oz grapefruit liqueur

1 oz citric acid solution (20:1 water to acid, by weight; optional)

1/2 oz agave syrup, or less to taste

1/2 oz fresh cantaloupe juice

2 oz soda water

meringue shard, garnish

METHOD: 

Combine first 6 ingredients in a cocktail shaker full of ice and shake until thoroughly chilled. Strain into a highball glass full of ice, and top with soda. Garnish and serve. Serves 1.