Zest the limes. If you want smaller bits of zest, chop with a knife after zesting.
2 Tablespoons lime zest
Juice the limes
1 cup fresh squeezed lime juice
Add sugar to the lime juice and stir until dissolved
¾ cup sugar
Pour into a large container and add zest and milk. The lime juice will cause the milk to thicken and look slightly curdled. This is okay!
3 cups whole milk
Pour into your ice cream maker and churn for 20-30 minutes until frozen (follow manufacture's directions for churning)
Place in a freezer-safe container and freeze for at least two hours to harden the sherbet
Notes
This sherbet is tart. Taste the lime and sugar mixture before adding the milk. If it's too tart for your tastes, add a ¼ cup of sugar or to your liking.
Make certain your ice cream bowl is fully frozen. Mine takes at least 12 hours to fully freeze.
Chop the zest into smaller pieces after zesting if you want very fine pieces of zest.
You may add an additional ¼ cup of sugar if you prefer your sherbet a bit sweeter.
Harden the sorbet for at least 2 hours after churning.
If sherbet becomes too hard, allow it to sit at room temperature for 5-10 minutes before scooping.