Ingredients

2 1/2 cups sugar 

6 1/2 cups filtered water 

3 cups freshly squeezed lemon juice (15 to 20 lemons), plus 1 lemon for garnish 

4 cups ice 

Preparation

In a small saucepan, combine sugar and 2 1/2 cups water. Bring to a boil over medium-high heat, stirring until sugar is dissolved. Remove from heat; let cool.

In a punch bowl or large container, combine the lemon juice, sugar syrup, remaining 4 cups water, and ice. Stir well to combine. Thinly slice remaining lemon, and add to lemonade. Serve.