Step 1

Juice lemons. Save halves for serving.

Step 2

In a small saucepan over medium heat, combine water, sugar, and lemon zest. Stir well. Bring to a boil, then reduce heat to low and simmer 3 minutes. Remove from heat and allow to cool.

Step 3

Strain cooled water, sugar, and lemon zest mixture into bowl.

Step 4

Stir in 2 cups of freshly squeezed lemon juice and 1/2 cup of lemon-lime soda.

Step 5

Transfer to a 9 x 13 metal baking pan. Place in freezer (for 2-4 hours). Stir with fork every half hour.

Step 6

Scoop into lemon half, garnish with mint.