ingredients
8 cups 1-inch cubes of seedless watermelon (from about a 4 1/2 pound watermelon)
1 1/2 cups fresh lemon juice (roughly 8 lemons)
3 1/2 cups water
1 cup granulated white sugar
for serving: ice cubes or frozen watermelon cubes
lemon wedges/watermelon wedges for garnish
directions
working in 2 batches, blend watermelon and lemon juice in food processor or blender until smooth. pass through a wire sieve to remove any thick pulp/seeds. transfer to pitcher.
bring 3 1/2 cups water and sugar to boil in medium saucepan over high heat, stirring until sugar dissolves. add hot syrup to pitcher with watermelon-lemon juice. refrigerate until cold, about 2 hours.
fill glasses with ice (or frozen watermelon cubes). pour watermelon lemonade over and garnish glasses with lemon wedges.