3 ounces of grapefruit juice (I used Ruby Red Grapefruit Juice)
1 ounce of vodka
1/4 ounce of lemon-lime soda or Lime La Croix
Kosher salt for rimming
lime disk or grapefruit wedge for garnish
Use a lime wedge to moisten the rim of a glass and dip in Kosher salt.
Fill glass with ice.
Add 3 ounces of grapefruit juice and 1 ounce of vodka.
Top with a splash of lemon-lime soda or La Croix.
Stir together and enjoy!