Lemon Frappe

1 (6 ounce) can frozen lemonade concentrate, undiluted
1 1/2 cups water
1 pint lemon ice cream or sherbet
1 (12 ounce) can ginger ale

Combine first 3 ingredients in blender container; process until smooth. Spoon into pitcher; stir in ginger ale. Serve immediately.

Makes 5 cups.