• 1lemon, peeled
• 1lime, peeled
• ¾cup granulated sugar
• Pinch of fine sea salt
• ¾cup/6 ounces fresh lemon juice (from about 2½ large lemons)
• Ice
• 2ounces dry red wine
• ¾ounce sweet vermouth (optional)
• 4ounces lemon-lime soda, such as La Casera, 7Up or Sprite (or use ¾ ounce Lemon-Lime Simple Syrup, plus 2 to 4 ounces soda water)
• Lemon wheel, for garnish

In an ice-filled cocktail shaker, combine the wine, vermouth and syrup, if using. Cover and shake until cold, then strain into an ice-filled highball or wine glass. Top with soda (or soda water), and mix gently to combine. Garnish with the lemon wheel and serve.