Cut a slice of lime and place it on a fire safe plate.
Sprinkle sugar over top of the lime to coat the top.
Use a kitchen torch to heat the sugar until it caramelizes and the lime starts to get some brown areas. Set the lime slice aside while you make the drink.
Smoked Sea Salt Rim
Add smoked sea salt to a small dish.
Using a cut lime or other liquid, wet the rim of the serving glass.
Dip the rim of the glass into the salt, turning after each dip until you've coated the entire rim.
Cocktail
Add the tequila, mezcal, Cointreau, lime juice and smoked simple syrup to a cocktail shaker.
Fill the shaker with ice and give the mixture about 15-20 good shakes.
Fill the prepared serving glass with fresh ice and strain the drink into the glass.
Set the cocktail smoker on top of the glass, being careful not to disturb the salt rim too much. Add the wood chips to the smoker. (See Notes #2)
Use the kitchen torch to light the wood chips and then seal the top of the smoker.
Allow the smoke to sit inside the glass for about 3 to 5 minutes.
Remove the smoker from the serving glass, add the brûléed lime to the rim, and serve.
Notes
If you don't have smoked simple syrup prepared, you can use plain simple syrup or agave nectar.
The instructions are for a glass-top cocktail smoker, but you can also use a cloche-style smoker or something else. Just follow the manufacturer's instructions after pouring the cocktail.