Whole vanilla beans steeped in a custard base give this homemade ice cream a clean, full vanilla flavor that extract alone cannot match. The custard is cooked on the stovetop before churning, which produces a rich, creamy texture. Budget about 45 minutes of active work plus overnight freezing for the best results.
Make the Custard Base: In a medium saucepan over medium heat, combine the heavy cream and milk. Whisk occasionally until it starts to steam but doesn't boil.
Combine Eggs and Sugar: In a separate bowl, whisk together the egg yolks and granulated sugar until pale yellow and thick.
Temper the Eggs: Gradually add a ladle of the heated cream mixture into the egg mixture while continuously whisking to temper the eggs.
Cook the Custard: Return the tempered egg mixture to the saucepan. Cook over low heat, stirring constantly, until it thickens and coats the back of a spoon.
Strain and Chill: Strain the custard through a fine mesh sieve into a bowl. Stir in the vanilla extract and a pinch of salt. Cover and refrigerate until completely chilled.
Churn the Ice Cream: Once chilled, pour the mixture into an ice cream maker. Churn according to the manufacturer's instructions, usually about 20-25 minutes.
Freeze the Ice Cream: Transfer the churned ice cream to a freezer-safe container. Freeze for at least 2 hours or until firm before serving.
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Notes
For a flavor twist, consider adding a splash of bourbon or a few vanilla bean seeds for added depth.
For a leaner version, substitute half and half for the heavy cream.
Remember, mastering the custard base is the key to luxurious, silky ice cream.