Use one cup of sugar if you plan to serve lemonade with a simple syrup. To extract the most juice from limes, microwave them at HIGH for about 15 seconds for this delicious limeade recipe.
Bring 1/2 cup water to a boil in a medium saucepan. Stir in sugar and grated lime rind, stirring until sugar is dissolved; remove from heat. Stir in lime juice and ice water.