Watermelon Cooler

Directions

1. 1
   Cut the watermelon flesh into chunks and, working in batches, puree in a blender until liquified, Strain through a fine sieve to remove the pulp; you should have about 4 cups of juice.
2. 2
   Combine the watermelon juice and the lemonade in a 5-quart pitcher.
3. 3
   To make individual cocktails.
4. 4
   fill a shaker with ice.
5. 5
   Add 1 cup of the watermelon-lemonade mixture and 2 ounces of alcohol.
6. 6
   Shake vigorously.
7. 7
   Strain into a tall glass filled with ice or a chilled martini glass.