1 cup ice cubes
1/2 cup coconut water (liquid from inside coconut)
1/4 cup cherries, pitted
1 cup cubed, seeded watermelon
1 teaspoon granular sucralose sweetener (such as Splenda®) (optional)
Place ice in a blender and pour in coconut water; add cherries, watermelon cubes, and sweetener. Cover and blend until slushy, about 1 minute. Pour into 2 glasses to serve.