1. 1. In a medium saucepan, combine the milk, cream, sugar, and salt. Heat over medium heat, stirring occasionally, until the sugar has completely dissolved.

2. 2. Remove the saucepan from the heat and let the mixture cool slightly.

3. 3. Stir in the freshly squeezed lime juice and the optional food coloring (if using).

4. 4. Chill the mixture in the refrigerator until it’s thoroughly cold, about 2 hours.

5. 5. Pour the chilled mixture into an ice cream maker and churn according to the manufacturer’s instructions, until it reaches a soft-serve consistency.

6. 6. Transfer the churned Lime Sherbet to a freezer-safe container and freeze for at least 2 hours, or until firm, before serving.