1-1/2tbspvanilla extract or the seeds scraped from 2-1/2 inches of vanilla bean
Instructions
Make a rich custard in the upper part of a double boiler by combining the egg yolks, milk, sugar, and salt. Cook until the mixture is thick enough to coat a wooden spoon or spatula or a metal spoon, and let it cool.
Stir in the heavy cream and the vanilla.
Pour the mixture into the freezing can and freeze as instructed in ice cream freezer directions.