For a dairy-free option, substitute condensed milk with coconut condensed milk.
If Persian limes aren't available, Key limes work well but you'll need approximately twice as many.
For a lower-sugar version, use 1/4 cup sugar and 1/4 cup of natural sweetener like stevia or monk fruit.
Sparkling water can replace regular water for a fizzy variation.
This drink is best enjoyed immediately when the frothy texture is at its peak.
Avoid over-blending the limes as this can extract bitter compounds from the pith and peel.
Keyword Brazilian Lemonade, Limonada Suíça, Lime Drink, Creamy Citrus, Summer Refreshment