Ingredients

• 3/4 cup sugar
• 2 tablespoons grated lemon zest
• 4 cups water
• 1 teaspoon Cointreau or Grand Marnier
• 1 1/3 cups fresh lemon juice (8 or 9 lemons)
• Ice cream maker

Instructions

1. Combine the sugar, lemon zest, and water in a medium saucepan and bring to a boil over medium heat, stirring to dissolve the sugar. Remove the mixture from the heat, pour into a large bowl, and allow to cool completely. Add the Cointreau or Grand Marnier and lemon juice and stir to mix thoroughly. Cover and refrigerate until well chilled, at least 4 hours.
2. Churn the mixture in the ice cream maker according to the manufacturer’s instructions. Transfer to an airtight container and freeze until firm, at least 1 hour.
3. Serve the ice in paper cups or small bowls.