Holiday Orange-Eggnog Punch

In a heavy medium saucepan, stir together egg yolks, milk, and sugar. Cook and stir over medium heat until mixture just coats a metal spoon; do not let boil. (Should take about 25 minutes and register 170 degrees F to 175 degrees F on instant-read thermometer). Remove from heat.

Place the pan in a sink or bowl of ice water and stir for 2 minutes. Stir in orange juice and lemonade concentrates and vanilla. Cover and chill for 4 to 24 hours.

Just before serving, cut ice cream in small chunks or scoops; put in a punch bowl. Slowly pour lemon-lime carbonated beverage over ice cream. Stir in chilled egg mixture. If you like, sprinkle each serving with nutmeg or white chocolate and add an orange twist. Makes 22 (4-ounce) servings.