01 - Press the lemons using a citrus juicer to extract fresh juice, removing any seeds.
02 - In a large pitcher, combine the lemon juice with sugar. Stir thoroughly with a wooden spoon until the sugar completely dissolves.
03 - Pour in the cold water and mix well to ensure even distribution of sweetness.
04 - Add ice cubes to the pitcher. Taste the lemonade and adjust sweetness by adding more sugar or dilute with additional water if needed.
05 - Pour into glasses and garnish with lemon slices and fresh mint leaves if desired. Serve immediately while chilled.