Lemon Pie
["1 1/2 c. sugar", "6 Tbsp. cornstarch", "1/4 tsp. salt", "1/2 c. lemon juice", "1/2 c. cold water", "3 egg yolks", "1 1/2 c. boiling water", "1 Tbsp. margarine", "9-inch baked pie shell"]
["In a medium saucepan, combine sugar, cornstarch and salt.", "Add lemon juice, cold water and egg yolks; stir in boiling water. Cook over medium heat, stirring constantly, until mixture begins to boil.", "Cook 2 to 3 minutes more.", "Stir in margarine until melted.", "Remove from heat.", "Pour into pie shell."]
["sugar", "cornstarch", "salt", "lemon juice", "cold water", "egg yolks", "boiling water", "margarine", "shell"]