Start by quartering the whole limes into smaller pieces. Place these lime quarters into a blender with three cups of water. Blend the mixture for 30 to 40 seconds on high speed, just until the limes are well pulverized.

Once blended, pour the lime mixture through a fine-mesh strainer placed over a large bowl or pitcher. Use a spatula to gently press the mixture, extracting all the tangy liquid while discarding any solids left behind.

Return the strained lime juice to the blender. Pour in one cup of sweetened condensed milk and about two cups of ice. Blend for an additional 10 to 15 seconds until everything is well combined.

Pour your creamy Brazilian Lemonade into tall glasses, garnishing with fresh mint leaves and a wedge of lime if desired. Serve immediately for the best experience.