WATERMELON-RASPBERRY SLUSH

2 cups seedless watermelon
2 tsp lemon juice
½ cup fresh or frozen raspberries.

Cut watermelon into small cubes. Put watermelon, lemon juice, and raspberries in a blender.

Blend until smooth. Pour the mixture into a shallow glass pan and freeze for 1½ to 2 hours.
Every half hour, use a fork to break up the ice crystals. When the mixture is thick and slushy, it's ready to eat.

From Highlights High Five (August 2010)