Makes about 1 quart
Dark, rich beer lends a subtle toasty flavor to the ice cream.
1. In a medium saucepan, bring the porter to a boil. Reduce the heat and simmer 12 to 15 minutes or until reduced to about 1/3 cup.
2. In a large saucepan, combine the cream, milk, and sugar. Using a small, sharp knife, scrape the seeds from the vanilla bean into the cream mixture. Add the vanilla pods. Bring the mixture to a gentle boil over medium heat, then remove the pan from the heat.