Gin Margarita (Margatini)

Bahan-bahan (1 porsi)

• 1 1/2 ounces gin
• 1 ounce Cointreau (orange liqueur)
• 3/4 ounce freshly-squeezed lime juice
• optional sweeteners: agave nectar or simple syrup, if desired
• for serving: lime wedge, coarse salt, ice