Rim a highball glass with salt by rubbing a grapefruit wedge around the edge and dipping it in salt on a small plate.
Then, fill the glass with ice cubes.
Add tequila, grapefruit juice, lime juice, and honey syrup to a cocktail shaker with ice.
Shake for 10-15 seconds until well chilled.
Strain the mixture into the prepared glass, and top with club soda.
Finally, stir gently with a bar spoon and garnish with a grapefruit wedge.
Notes
Make honey syrup ahead of time and store it in the fridge for up to 2 weeks.Fresh-squeezed juice makes a big difference in taste compared to bottled juice.The drink can be made less sweet by reducing the honey syrup to 1/2 oz.For a spicy variation, add a few slices of jalapeño to the shaker.This recipe serves one person but can be doubled or tripled for a small group.