Brazilian Lemonade

4 juicy limes
1 c. sugar
6 c. cold water
6 Tbsp. sweetened condensed milk

Mix cold water and sugar very well and chill until ready to use. This step can be done ahead of time.
Wash limes thoroughly with soap.  Cut the ends off the limes and then cut each lime into 8ths.  Place 1/2 of the limes in your blender.  Add 1/2 of the sugar water, place the lid on your blender, and pulse 5 times. Place a fine-mesh strainer over a pitcher (the one you’ll serve the lemonade in) and pour the blended mixture through the strainer and into the pitcher. Use a spoon to press the rest of the liquid into the pitcher. Dump the pulp and stuff in the strainer into the trash. Repeat with remaining limes and sugar water. Add sweetened condensed milk.  Serve immediately over lots of ice. This does not keep well so serve immediately.

I found this recipe here.http://www.ourbestbites.com/2008/05/brazilian-lemonade/