Rim a glass with salt and pepper, fill with ice, then set aside.
2.
Add all of the ingredients to a shaker with ice and shake vigorously for 10-20 seconds.
3.
Strain into the prepared glass, then garnish.
Notes
Salted tomato syrup
Add 150g of ripe tomato to 150g of white sugar. Macerate overnight at room temperature, then strain out the solids. Add 2% salt by weight (3g), stirring to combine. Keeps refrigerated for up to 1 week.
Tip
For a lighter taste, use a ratio of 1½ oz. sherry to ½ oz. mezcal.