Cheers! Shake Up This Grapefruit Cocktail for the Fourth

07/03/2012 at 05:50 PM EDT

Oh, say can you … swill, a patriotic cocktail? Whether celebrating independence eve tonight or kicking off Wednesday's July Fourth festivities, try this spirited, refreshing drink.

Cali Grapefruit

• 2 oz. white rum (recipe recommends Caliche Rum, crafted by Cindy Crawford's husband Rande Gerber)
• ½ oz. bitters (recipe recommends Campari)
• 1 oz. grapefruit juice
• ¼ oz. agave nectar
• Soda water
• Grapefruit wedge
Combine all ingredients in a shaker filled with ice, and shake until chilled. Strain into a highball glass and top with soda water.

Follow PEOPLE on Pinterest: Our Summer Drinks board has plenty more refreshing drink ideas from editors and readers like you!