Wash the limes thoroughly to remove any dirt or pesticides from the skin.

Chop the limes into quarters. Don’t worry about peeling them – we’re using the entire lime for maximum flavor.

Add the chopped limes, cold water, and sweetened condensed milk to a blender or food processor. Blend for a few minutes until the mixture is as smooth as possible.

Pour the blended mixture through a fine-mesh strainer to remove the pulp and any remaining pieces of lime skin.

Fill glasses with ice and pour the strained limeade over the ice. Garnish with additional lime slices if desired.