01 - Place chilled watermelon cubes in blender container.
02 - Pour in milk, add vanilla ice cream, and include sweetener if desired.
03 - Add fresh lime juice for a tangy flavor variation.
04 - Blend on high speed until completely smooth and creamy, approximately 1-2 minutes.
05 - Add ice cubes and blend again if thicker, frostier texture is preferred.
06 - Pour into tall glasses and serve immediately while cold.