Beat egg yolks thoroughly in a large bowl.
Heat remaining ingredients in a medium saucepan over medium heat, stirring often until sugar has dissolved and it's l warm (115 degrees F), about 5 minutes. Remove from heat.
Whisking constantly, slowly add 1 ½ cups of the cream mixture to the egg yolks.
Transfer the cream and egg mixture back into the saucepan.
Cook over medium heat, stirring constantly and making sure to scrape the bottom and sides of the pan until the custard has thickened and has reached 170 degrees, about 6 minutes. Remove from heat.
Pour the custard through the fine-mesh strainer into a large bowl. Discard any solids remaining in the strainer.
Place the bowl of custard onto an ice bath. Stir the custard constantly until cool, about 5 minutes.
Transfer to an airtight container and chill for at least 4 hours and up to 3 days.
Once chilled thoroughly, churn the custard base in your ice cream maker following the manufacturer’s instructions.
Transfer to an ice cream tub and freeze until firm, about 6 hours.