1/4 of a medium watermelon
3 limes, peeled
2 quarts water
1 1/4 cup granulated sugar
Cut rind off watermelon and dice the meat. Cut rind off limes. Blend watermelon and limes with 1/4 of the water in a blender on high speed. Pass the ingredients through a fine mesh strainer into the container to be stored or served in. Add the remaining water, whisk in the sugar, and chill before serving.
Pour in tall glasses over ice, and garnish with a sprig of mint or a wedge of strawberry. The recipe can be doubled (serves 8-12) or quadrupled (serves 12-16).
Note: You can make other flavors of lemonade by substituting equal amounts of fruit by volume. Try pineapple, honeydew melon, cantaloupe, mango, strawberry, or papaya. You may need to adjust the amount of sugar used based on the sweetness of the fruit.