01 - Combine coarse kosher salt and chili powder in a shallow plate.
02 - Moisten the rim of each serving glass with a lime wedge, then dip into the salt mixture to achieve an even coating.
03 - In a cocktail shaker or large jar, combine dill pickle brine, fresh lime juice, agave syrup, cold water, and ice cubes.
04 - Secure the lid on the shaker or jar and shake vigorously for approximately 15 seconds, or until thoroughly chilled.
05 - Strain the chilled mixture into the prepared glasses filled with fresh ice. Garnish each with a lime wedge and a dill pickle slice. Serve immediately.