Chill the Water: Place ½ cup of cold water into the refrigerator with a few ice cubes for about 5 minutes.

Combine Ingredients: Add 1 cup of freshly squeezed lemon juice, 2 cups of vanilla ice cream, and the chilled cold water to the blender.

Blend to Perfection: Blend on high for 30-45 seconds until smooth and creamy.

Serve Immediately: Pour into tall glasses and garnish with a lemon slice or mint if desired.