01 - Squeeze fresh lemons to obtain 1 cup of juice, removing any seeds or pulp.
02 - In a large pitcher, combine lemon juice with sugar and stir vigorously until completely dissolved.
03 - Add cold water to the lemon-sugar mixture and stir thoroughly to incorporate all ingredients.
04 - Add ice cubes to the pitcher, taste the lemonade, and adjust sweetness or water ratio as needed.
05 - Pour lemonade into glasses over ice and decorate with fresh lemon slices and mint leaves if desired.