Watermelon Cosmopolitan with Blackberry Spritz

I love Cosmopolitan cocktails! My Watermelon Cosmo is especially tasty with my secret ingredient: fresh watermelon juice! I spritz my cosmo with fresh blackberry juice which adds a alluring sparkle of color to the top of my drink.

Watermelon Cosmopolitan with Blackberry Spritz

Prep Time 2 hours 30 minutes
Total Time 2 hours 30 minutes
Course Drinks
Servings 1 cocktail


  • 1 Blender
  • 1 cocktail shaker


  • 6 fresh mint leaves, torn
  • 1 1/2 ounces vodka
  • 1 ounce triple sec
  • 1/2 ounce fresh lime juice
  • 2 ounces chilled watermelon juice see note below
  • 1/2 ounce simple syrup
  • 1 lime wedge for garnish
  • Blackberry juice for spritzing see note below


  • Place martini glass in freezer to chill while making cocktail.
  • Place torn mint leaves in cocktail shaker. Muddle.
  • Fill a cocktail shaker with ice.
  • Add vodka, triple sec, lime juice, watermelon juice, simple syrup to shaker.
  • Cover shaker, shake vigorously.
  • Strain into the chilled martini glass.
  • Place blackberry juice into a small spritzer bottle. Spritz top of cosmopolitan liberally with blackberry juice.
  • Garnish with lime slice.
  • Note: To make watermelon juice, slice watermelon in half, remove seeds and scoop chunks of flesh into blender. Discard the rind. Blend the watermelon until it is totally pulverized, about 1 minute. Add the juice of 1 lime and blend for a few seconds. Strain the juice through a fine mesh sieve. Transfer juice into a pitcher and chill for at least 2 hours.
  • Note: To make blackberry spritz: Place 1 pint fresh blackberries, 1/2 cup sugar and 1/2 cup water in a saucepan. Heat over medium low heat, stirring and mashing berries with a fork until berries are completely mashed. Cook an additional 2 minutes over low heat. Strain through a small mesh sieve into a small bowl.

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