3Tablespoonsunsweetened Dutch-process cocoa powderI used Hershey's Dark
5ouncesbittersweet or semisweet chocolatechopped
5large egg yolks
In a medium saucepan, heat 1 cup of the heavy cream and the cocoa powder over medium heat. Constantly whisk the mixture to evenly incorporate the cocoa powder. Let the mixture come to a boil and then reduce the heat to low. Allow the cream to boil at the low heat for 30 seconds while you continue to stir.
Remove the mixture from the heat and add in the chopped chocolate and stir until smooth. Then add the remaining 1 cup of cream and stir. Pour the mixture into a large bowl and set a mesh strainer on top of the bowl.
In the same saucepan, heat up the milk, sugar and salt. In a separate medium bowl, whisk the egg yolks. Temper the yolks by pouring a bit of the warm milk mixture into the egg yolks and keep whisking. Pour the yolks into the saucepan.
Keep stirring the milk and yolks over medium heat with a heatproof spatula until it thickens enough to coat the back of your spatula. Pour the custard through the strainer and into the chocolate and cream mixture in the large bowl. Stir the mixture a few times and then whisk in the vanilla.
Chill the mixture thoroughly in the refrigerator (preferably overnight) and then freeze it in your ice cream maker according to the manufacturer's instructions. You can add in peppermint patties, chocolate chips or chunks, or even marshmallows and roasted peanuts to jazz it up a bit.