Italian Water Ice
["2 c. sugar", "4 c. boiling water", "1 tsp. cream of tartar", "juice from 6 lemons (may add grated zest)", "2 egg whites"]
["Dissolve sugar in water and let cool to room temperature.", "Add cream of tartar and lemon juice.", "Mix; pour into large bowl and place in freezer for 2 hours.", "Freeze until mushy, stirring 2 or 3 times.", "Beat egg whites until stiff and add to mixture.", "Continue freezing, stirring occasionally, until mixture has a snowy consistency."]
["sugar", "boiling water", "cream of tartar", "lemons", "egg whites"]