6 oz. chilled root beer
3 sm. scoops (about 3/4 c.) vanilla ice cream
Chilled Club Soda (optional)

Fill a 14 ounce glass 1/3 full with root beer. Add 1 scoop ice cream. Pour in about 1/4 cup more root beer. Add 2 more scoops of ice cream. Pour in enough root beer to fill glass. Serve with Club Soda to add for extra carbonation, if desired.