Orange Sherbet - Alton Brown

Ingredients

• 7 ounces sugar
• 1 1/2 tablespoons finely grated orange zest
• 1/4 teaspoon kosher salt
• 2 cups freshly squeezed orange juice
• 1 tablespoon freshly squeezed lemon juice
• 1 teaspoon vanilla extract
• 1 1/2 cups whole milk, chilled