Whisk together the milk, cream, sugar, vanilla, and salt in a bowl until the sugar dissolves. No gritty sugar—nobody wants crunchy ice cream.
Chill the base for at least 2 hours, or overnight if your schedule is chaotic but delicious. Cold base = creamy results.
Pour into your ice cream maker and churn according to the manufacturer’s instructions. If you don’t have a machine, pour into a freezer-safe container and stir every 30 minutes for 2–3 hours to mimic churning.
When the ice cream reaches a soft-serve consistency, fold in any add-ins you love. Chocolate chips? Yes. Cookie chunks? Yes. Then freeze until firm for that DQ-level scoopability.