Add 4 cups of ice to a glass or plastic pitcher, wash, then slice 2 of your lemons into thin slices, add them to the pitcher, reserving a few slices for garnish on your glasses.
In a bowl, squeeze the remaining lemons, add the white sugar and the sweetened, condensed milk. Whisk really well until the sugar dissolves. Taste the mixture and if you would like it sweeter or creamier, add more sugar or sweetened condensed milk and whisk again. Pour this into your pitcher.
Add your 4 cups of water, stir well to combine, let chill for a few minutes. This can also keep in the fridge for several days.
Fill glasses with ice, pour your super special lemonade into the glasses and garnish with the fresh lemon slices.
If you would like to make this into an adult beverage you can add flavored vodka or a delicious coconut rum.
