Lemon Pie
["1/3 c. cornstarch", "1 1/4 c. sugar", "1/4 tsp. salt", "1 1/2 c. boiling water", "3 eggs, separated", "1/3 c. strained lemon juice", "2 Tbsp. butter", "1/2 tsp. grated lemon rind"]
["Stir well; cool before putting in pie shell."]
["cornstarch", "sugar", "salt", "boiling water", "eggs", "lemon juice", "butter", "lemon rind"]