Instructions

  1. Combine sugar and water in a saucepan; cook, stirring constantly, until sugar dissolves.
  2. Cool completely.
  3. Puree bananas in an electric blender until smooth.
  4. Combine bananas, dissolved sugar mixture, juices and lemonade in a large freezer container (a plastic 1-gallon milk carton works well).
  5. To serve, thaw until slushy.
  6. Pour into a punch bowl; gently stir in 7 UP.
  7. Serve immediately.