Ingredients

2 cups fresh lime juice

3/4 cup sugar

2 cups vodka

8 cups crushed ice

lime slices, for garnish

Preparation

Combine the lime juice and sugar in a bowl and whisk to dissolve the sugar. Pour half of this mixture into an electric blender, add 1 cup vodka and 4 cups ice and blend until smooth. Divide among 4 glasses, such as margarita glasses or other wide-mouthed, stemmed glasses. Repeat with the remaining ingredients. Serve immediately with lime slices for garnish.