01 - In a medium saucepan, combine the heavy cream, whole milk, and half of the granulated sugar. Heat over medium, stirring occasionally, until the mixture begins to steam. Do not allow it to 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 - While whisking constantly, slowly pour the hot cream mixture into the yolk mixture in a thin stream. This gradual addition prevents the eggs from scrambling. 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. It should reach 170–175°F (77–80°C). Do not let it boil.
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 lumps. Allow it to cool to room temperature, then cover tightly and refrigerate for at least 4 hours or overnight for best results.
07 - Pour the thoroughly chilled custard into an ice cream maker. Churn according to the manufacturer's instructions, typically 20 to 25 minutes, until the ice cream reaches a thick, creamy consistency.
08 - Transfer the churned ice cream to a lidded freezer-safe container. Smooth the top, cover securely, and freeze for at least 2 hours until the ice cream is firm enough to scoop.