01 - In a medium saucepan, combine the heavy cream, whole milk, and half of the granulated sugar. Warm over medium heat, stirring occasionally, until the mixture begins to steam but does not come to a boil.
02 - In a separate mixing bowl, whisk together the egg yolks, remaining sugar, and salt until the mixture turns pale yellow and becomes slightly thickened.
03 - Slowly pour the hot cream mixture into the yolk mixture in a thin stream, whisking constantly to gradually raise the temperature of the yolks without scrambling them. Once fully combined, pour the entire mixture back into the saucepan.
04 - Cook over low heat, stirring continuously with a wooden spoon, until the custard thickens enough to coat the back of the spoon. The internal temperature should reach 170–175°F (77–80°C).
05 - Remove the saucepan from the heat and stir in the pure vanilla extract until evenly incorporated.
06 - Pour the custard through a fine-mesh sieve into a clean bowl to remove any cooked egg bits. Allow it to cool to room temperature, then cover tightly and refrigerate for at least 4 hours or overnight for best results.
07 - Transfer the thoroughly chilled custard into an ice cream maker and churn according to the manufacturer's instructions, approximately 20–25 minutes, until the mixture reaches a thick, creamy soft-serve consistency.
08 - Spoon the churned ice cream into a freezer-safe lidded container, smooth the top, and freeze for at least 2 hours or until the ice cream is fully firm and scoopable.