1/4 teaspoon almond extract
Finely grind the pistachios and 1/2 cup of the sugar in a food processor.
Bring the milk and cream to a boil in heavy large saucepan. Remove from
heat.
Combine the egg yolks and remaining 1/2-cup sugar in a mixing bowl
and whisk to blend. Gradually whisk 1 cup of the hot milk mixture
into the
eggs. Gradually add the egg mixture in a slow, steady stream into the
hot cream in the saucepan. Cook over low heat, stirring occasionally,
until the custard thickens enough to coat the back of a spoon, about
6 minutes.
Remove from the heat and strain into a large bowl. Add pistachio
mixture and almond extract. Refrigerate for 2 hours or place
bowl over an ice
bath to chill quickly.
Pour into the bowl of an ice cream machine. Freeze according to the
manufacturer's instructions. After the ice cream is made, transfer
to an airtight container
and freeze until ready to serve.