1 (6oz.) can frozen lemonade, thawed
1 (6oz.) can frozen limeade thawed
1/2 cup sifted powdered sugar
3 1/4 cup crushed ice
1 1/2 cups club soda, chilled
Lime slices for garnish (optional)
Combine first 4 ingredients in large plastic container, stirring until sugar dissolves. Freeze mixture. Remove from freezer 30 minutes before serving. Spoon into blender; add club soda. cover and process until smooth. Pour into glasses (dipped in sugar or salt!) and garnish with lime.
