1/2 c sugar
3 T sweetened condensed milk
Water to taste (1 cup or so, depending on how slushy vs. smooth you'd like it)
Wash limes. Cut and squeeze lime juice into blender. (Some variations of the recipe add the limes a wedge at a time, but this requires you to strain it later and... I prefer things as easy as possible.) Add sugar, sweetened condensed milk, water, and ice (start off small and add more ice/water to reach the level of sweetness you like). Blend by pulsing to consistency you like, and enjoy!
(If you want to be fancy, wet the rim of the glasses you'll be using and then dip upside down onto a plate with sugar to coat the rim. Place a lime wedge on the rim.)
|again, not my picture. but from a blog with a pretty similar recipe.|