Purple Cow

1 pint vanilla ice cream softened
1-6 oz. can frozen grape juice concentrate
3 cups milk
ginger ale
extra vanilla ice cream
Blend vanilla ice cream and frozen grape juice. Gradually add 
milk. For each serving, pour 1 cup of the ice cream mixture 
into a glass. Add 1/2 cup ginger ale mix well and top with 1-2 
scoops of vanilla ice cream.