Pineapple Sorbet
["1 medium pineapple, peeled and cubed", "2 Tbsp. lemon juice", "3/4 to 1 c. sugar"]
["Puree pineapple and lemon juice.", "Add sugar.", "Taste and add more as needed.", "Pour into 9 x 9-inch pan and freeze for 1 to 2 hours, until just firm.", "Place 1/3 into the blender and whirl until smooth.", "Put into airtight container."]
["pineapple", "lemon juice", "sugar"]