01 -
Place lemon juice, lemon zest, coconut milk, sugar or sweetener, and ice cubes into a high-powered blender.
02 -
Blend on high speed until the mixture is smooth and slushy with no remaining large ice pieces.
03 -
Taste and adjust sweetness as needed, or add additional ice to reach your preferred flavor and thickness.
04 -
Pour the frozen coconut lemonade into chilled glasses and serve at once.
05 -
For an alcoholic version, add a splash of vodka or rum to the blender and blend briefly before serving.