Gather 4 to 6 lemons, 1/2 to 1 cup sugar, 4 cups cold water, and ice
Roll the lemons on a counter to release more juice
Cut the lemons in half
Squeeze the lemons to collect the juice
Remove seeds from the juice
Add the lemon juice to a pitcher
Add the sugar to the pitcher
Pour in 1 cup of warm water
Stir until the sugar dissolves
Add the remaining cold water
Stir well
Taste and adjust with more sugar, lemon juice, or water if needed
Add ice
Serve chilled