It's basically ginger-infused simple syrup added to lemonade --- genius. The recipe calls for frozen lemonade concentrate but the fresh ginger would pop better with fresh lemons, in my amateur opinion.
Homemade Lemonade (double this recipe to make the 12 cups you will need) 1 cup fresh-squeezed lemon juice to 1 cup sugar or a sugar substitute. (You can add more or less depending on how you like it!) 6 cups water - and