1 cup freshly squeezed lemon juice (5 to 6 lemons) 1/2 to 3/4 cup superfine sugar, to taste 1 cup crushed ice 4 cups water 2 teaspoons grenadine 6 maraschino cherries
Place the lemon juice, sugar, ice, water, and grenadine in a blender and process until completely smooth. Place a cherry in the bottom of 6 glasses and pour the lemon juice mixture in the glass. Serve.
