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+ servings

Watermelon Cocktail

close up shot of Watermelon Cocktail topped with a watermelon slice and mint in a glass
This watermelon cocktail is a surefire way to cool you down on a hot summer day or anytime you are looking for a sweet beverage.
Prep Time 5 mins
Chill Time 1 hr
Total Time 1 hr 5 mins
Course Drinks
Cuisine American
Servings 4
Calories 380 kcal


  • 3 cups watermelon juice, I used the all-natural Simply brand
  • 1 cup watermelon vodka, I used Smirnoff brand
  • ¼ cup fresh lime juice
  • ¼ cup mint simple syrup
  • 2 teaspoons grenadine syrup
  • Wedges of fresh watermelon and sprigs of fresh mint, for garnish

Mint simple syrup

  • 1 cup granulated sugar
  • 1 cup water
  • 2 sprigs, about 15 leaves of fresh mint


  • In a 2 cup microwave-safe glass measuring cup, heat the sugar and water for 2 minutes. Stir well until the sugar is completely dissolved. Add the fresh mint leaves and allow the simple syrup to cool completely before using it in the recipe.
  • In a pitcher, combine the watermelon juice, watermelon vodka, fresh lime juice, mint simple syrup, and grenadine syrup. Stir until completely incorporated. Chill for 1 hour before serving.
  • Pour into a cocktail glass and garnish with small watermelon wedges and a sprig of mint.


  • This recipe makes four cocktails; if you want to make a smaller or larger batch, adjust the ingredients accordingly.
  • You will have extra mint simple syrup leftover from this recipe. It can be stored in a sealed mason jar in the refrigerator for up to 1 week. It is great to use in a number of other cocktails or non-alcoholic drinks and is great to use to sweeten iced teas as well.
  • This watermelon cocktail should be served chilled; therefore, it makes a great make-ahead cocktail for a party. If you do not want to wait for it to chill, you can serve it over ice.


Calories: 380kcalCarbohydrates: 62gProtein: 1gFat: 1gSaturated Fat: 1gPolyunsaturated Fat: 1gMonounsaturated Fat: 1gSodium: 7mgPotassium: 167mgFiber: 1gSugar: 59gVitamin A: 799IUVitamin C: 15mgCalcium: 21mgIron: 1mg