Run a lime wedge around the rim of a margarita glass and dip in salt if desired.
Place cucumber slices in a cocktail shaker and muddle gently to release the juice.
Add tequila, fresh lime juice, triple sec, and simple syrup to the shaker.
Fill shaker with ice and shake vigorously for 15-20 seconds.
Double strain the mixture through a fine mesh strainer into the prepared glass filled with fresh ice.
Garnish with a cucumber ribbon and lime wheel.
Notes
Make simple syrup by mixing equal parts sugar and water in a small pot. Heat until sugar dissolves, then cool completely before using.Fresh ingredients make a big difference. Use newly squeezed lime juice instead of bottled.Store leftover simple syrup in an airtight container in the fridge for up to 2 weeks.For a spicy variation, add 2-3 thin jalapeño slices during the muddling step.This recipe serves one person. Double or triple ingredients to make multiple drinks.