1 C. Sugar
1 C. Water
Bring just to a boil, so the sugar is completely dissolved in the water. Remove from heat.
1 C. Lemon Juice (from freshly squeezed lemons or from the bottle, may substitute all or part with lime juice)
4-5 C. Cold Water and Ice
Combine additional water and lemon juice with syrup. Most of the ice will melt fairly quickly. Taste and add additional water if it's too strong still or a little more lemon juice if it's too sweet. Refrigerate and serve.
You can blend up and add fresh strawberries, mango, or other fruit or some sprigs of mint for a flavored lemonade.