2 cups whole milk
1 tablespoon plus 1 teaspoon cornstarch
1 1/2 ounces cream cheese, softened (3 tablespoons)
1 1/4 cups heavy cream
2/3 cup sugar
1 1/2 tablespoons light corn syrup
1/2 cup toasted pistachios, very finely ground
1/4 teaspoon pure almond extract
1/4 teaspoon kosher salt
In a large saucepan, combine the remaining milk with the heavy cream, sugar, and corn syrup. Bring the milk mixture to a boil and cook over moderate heat until the sugar dissolves, about 4 minutes. Off the heat, gradually whisk in the cornstarch mixture. Return to a boil and cook over moderately high heat until the mixture is slightly thickened, about 1 minute.
Gradually whisk the hot milk mixture into the cream cheese until smooth. Whisk in the pistachios, almond extract, and salt. Set the bowl in the ice water bath and let stand, stirring occasionally, until cold, about 20 minutes.
Strain the ice cream base into an ice cream maker, pressing the pistachios with the back of a spoon to extract all the flavor, and freeze according to the manufacturer's instructions. Pack the ice cream into a plastic container.
Press a sheet of plastic wrap directly onto the surface of the ice cream and close with an airtight lid. Freeze the pistachio ice cream until firm, about 4 hours.